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Anthropic puts its most powerful model Claude Mythos 5 to work for cyber defense

21 August 2026 at 19:35

Anthropic is now running its security scanner Claude Security on Claude Mythos 5. The tool scans codebases for vulnerabilities, provides severity ratings with CWE classifications, and suggests patches. Anthropic is also plugging Mythos 5 into partner security products protecting critical infrastructure.

The article Anthropic puts its most powerful model Claude Mythos 5 to work for cyber defense appeared first on The Decoder.

NVIDIA AVO Reaches 100% on ARC-AGI-3, Demonstrating a Frontier-Level General-Purpose Architecture for Long-Horizon Autonomous Agents

21 August 2026 at 13:00
A frontier language model is only one component of an AI agent. The surrounding agent system—often called a harness—determines how the model receives...

A frontier language model is only one component of an AI agent. The surrounding agent system—often called a harness—determines how the model receives context, uses tools, maintains state, responds to feedback, recovers from failure, and sustains progress over long-running tasks. The challenge is how to build the agent architecture that makes frontier language models work reliably on extended…

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Where Security Fits in an AI Agent Stack

21 August 2026 at 13:00
As AI agents become more capable and operate over longer horizons, building security and trust into the applications they power becomes increasingly important....

As AI agents become more capable and operate over longer horizons, building security and trust into the applications they power becomes increasingly important. Drawing on work with NVIDIA OpenShell, agent developers, open-source projects, and partners across the ecosystem, AI safety and security teams at NVIDIA offer their perspective on the emerging agent stack—including the role of each layer…

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Grok exfiltrates user data when malicious instructions are encrypted

20 August 2026 at 13:00

Earlier this week, researchers outlined an attack that used a secret input provided by Microsoft 365 Copilot for enterprise to cause the AI assistant to exfiltrate a password present in the user’s inbox. Now, a separate team has devised a similar attack against Grok. The new data theft hack employs a deceptively simple trick to force the Elon Musk-owned large language model to steal user chats and other personal information. At the time this post went live, the assistant continued to cough up the data, despite xAI being informed of it in June.

The lesson from both this week’s episodes—and the countless other ones that have come before it—is that LLMs are incapable of solving the root causes for prompt injections, the most severe vulnerability classes they’re most prone to. That leaves AI developers with no other option but to build a guardrail that steers the model away from the harmful actions. As I noted in Tuesday’s story, the approach is tantamount to a road traffic safety engineer erecting a protective rail around a dangerous bend rather than banking the curve.

Cryptographic Context Injection in the house

Prompt injections exploit LLMs' training to comply with user requests whenever possible. Attackers can capitalize on the predilection by smuggling harmful instructions into emails or webpages the assistant is instructed to summarize. Because LLMs can’t reliably distinguish between content in an email sent by an untrusted party and user instructions entered directly into a prompt, the overly solicitous LLM faithfully follows them. To date, Grok and other LLMs' only recourse is to create guardrails that flag suspicious instructions and forbid them from being executed.

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Attackers are using AI to build exploits for industrial control systems, U.S. agencies warn

19 August 2026 at 18:55

The NSA, CISA, and FBI say attackers are using AI to build exploit scripts targeting Siemens S7 controllers, drastically cutting the time and skill needed to attack industrial control systems. Critical U.S. sectors like energy, water, and manufacturing are affected.

The article Attackers are using AI to build exploits for industrial control systems, U.S. agencies warn appeared first on The Decoder.

Flock Has a Powerful New AI Tool for Police. We Got Its Code

Flock’s surveillance cameras have already sparked outrage. WIRED reconstructed its next-generation AI system, already in use by some police, to confirm it goes much further than tracking license plates.

OpenAI Overhauls Safety Protocols After Its AI Agents Went Rogue

The ChatGPT maker says its upcoming Astra model may have reached “critical” cyber capabilities, prompting it to halt a significant number of training runs while it tightens internal safeguards.

Microsoft Copilot reveals secret input that allowed it to be hacked

18 August 2026 at 13:00

It’s not every day that attackers can force a frontier AI model to cough up user passwords and other sensitive data without user confirmation. That’s exactly what researchers recently did to Microsoft 365 Copilot for enterprise. Even more unusual is the source they tapped to discover the critical vulnerability that made their exploit possible. Rather than employing reverse engineering or other traditional vulnerability-hunting methods, they asked Copilot. The LLM assistant readily complied.

Researchers at security firm Varonis knew they wanted to create an exploit that would exfiltrate user data when a user did nothing more than click on a link. Like most AI assistants today, Copilot steadfastly refused and made clear that sensitive prompts like that require explicit user consent in the form of a gesture, such as pressing a return key or other key. In response, the researchers peppered Copilot with questions about the guardrails that required user confirmation before the assistant could execute powerful commands.

Loose lips sink ships

The dialog was like a game of 20 questions. Each answer provided a new clue that divulged information about the complex safety mechanism. Why was auto-execution impossible, they asked. What URL structures and deep links were involved? What happens when a page is loaded with input already in the prompt field? Each answer provided a deeper view into the guardrail and its limits. Eventually, Copilot provided a stunning Microsoft trade secret—an undocumented prompt parameter that completely bypassed the requirement for user consent.

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Vulnerability giving attackers full control of Macs is under active exploitation

14 August 2026 at 18:32

Dutch officials have warned that a high-severity macOS vulnerability that allows attackers to execute malicious code is under active exploitation.

“The NCSC has received a notification indicating that active abuse of this vulnerability has been observed on multiple systems on which port 5900 was accessible from the Internet,” the Netherlands National Cyber Security Centrum warned earlier this week. “In all these cases, root had been accessed on the affected system and a Monero crypto miner had been placed.”

Do you know if your screen sharing is on?

The vulnerability, tracked as CVE-2026-65400, received a patch from Apple last week for macOS Tahoe, Sequoia, and Sonoma. The vulnerability, with a severity rating of 7.1 out of 10, stems from a bug in the macOS screen sharing capability, which allows a remote party to view the screen and control the keyboard and mouse while a machine is turned on. A flaw in the “state management,” which keeps track of preceding events, user interactions, variables, and other system states, is the underlying cause.

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Your container images are unsigned. In the AI era, that’s a ticking time bomb.

Dark abstract digital network grid with glowing cyan neon geometric lines representing software supply chain infrastructure.

Most organizations that know they should sign their images still don’t. Not because they disagree, but because the path to doing it well has been too long. The result is a delivery pipeline built on trust that nobody can verify.

The problem space

Unsigned container images create an open door for attackers at every stage of the delivery pipeline. Malicious images masquerade as legitimate packages, waiting to be pulled by an unsuspecting team. Compromised CI/CD pipelines silently inject tampered artifacts into production builds with no cryptographic evidence of modification. Stolen credentials let a bad actor impersonate a trusted publisher. Even within a single organization, inconsistent practice means some teams sign while others skip the step entirely, leaving gaps in the chain of trust that nobody has mapped. Compounding all of it is base image inheritance. Every container image inherits the security posture of its parent, so one compromised base image can propagate across dozens of downstream services before anyone notices.

“Scanning is fundamentally reactive. One tells you what is inside. The other tells you whether you can trust it.”

Scanning is fundamentally reactive. It answers, “what vulnerabilities exist in this image?” It cannot answer the question that matters more as artifacts get harder to inspect: “who built this, and has it been modified since it left the build system?” That is the domain of cryptographic signing, which provides proactive provenance. The two are complementary, not interchangeable. One tells you what is inside. The other tells you whether you can trust it. 

Why the AI era makes this urgent

The workloads have changed faster than the tooling. Model weights, training datasets, inference runtimes, and agent tooling increasingly ship as OCI artifacts. A pickled PyTorch checkpoint itself has no CVE to match against. Safer serialization formats like .safetensors remove the code execution path, but they say nothing about who produced the weights or whether they’re the ones you meant to load. There is no vulnerability database for a set of trained weights, and the CVE and SCA based scanning that registries run has nothing to compare them to. 

This is not theoretical. In February 2024, JFrog researchers found a malicious PyTorch model on Hugging Face that opened a reverse shell the moment it loaded, abusing pickle’s __reduce__ hook to execute arbitrary code on torch.load(). Their analysis surfaced roughly 100 models on the hub carrying genuinely malicious payloads. No CVE fired, because there was nothing for a CVE to describe. The malice lived in the serialized weights. Model-specific scanning has since appeared to close that gap. Hugging Face runs ClamAV plus a pickle import scan on every file pushed to the Hub, statically disassembling the pickle’s opcode stream to flag dangerous imports. While they help, they are also already being evaded. In February 2025, ReversingLabs described nullifAI, two models that slipped past picklescan by compressing with 7z instead of ZIP and by corrupting the pickle stream immediately after the payload ran, so static analysis errored out on a file whose reverse shell would have already run. Hugging Face removed the models inside 24 hours and patched picklescan. That is the shape of the problem. Pattern matching scanners are a line that keeps moving, and each one answers whether a file resembles something known to be bad. None of them answers where the file came from.

“A tampered application image defaces a page. A tampered AI model artifact corrupts predictions at scale.”

AI is widening the attack surface in the same motion. Coding assistants suggest dependencies that never pass a human threat model, and that code gets containerized and shipped faster than review can keep up. The blast radius changed too. A tampered application image defaces a page. A tampered AI model artifact corrupts predictions at scale, poisons recommendations served to millions, or in the agentic case takes actions in production: API calls, tool invocations, spend. And when you consume a pre-trained model, you inherit every upstream decision about its training data and its security with zero visibility into any of them. Provenance stopped being a question about your application code. It became a question about the model, the agent, and the tooling that carries them.

But signing is not a checkbox. It is a chain. It only works if every link holds.

Why registry is the right layer

Operating the registry at the scale of Amazon ECR has taught us something that shaped how we think about supply chain security. Most teams don’t verify images. They verify addresses. An admission policy allows images from your registry account, push credentials belong to the pipeline rather than to people, and a scanner blocks critical CVEs. That stops a lot of attacks. What it can’t do is tell a good image from a bad one once it’s inside the boundary, because registry provenance is a claim about location, not origin. Anything that can write to the repository produces an image that looks legitimate: a leaked CI token, a misconfigured cross-account role, a compromised build step. Digest pinning tells you that you got the bytes you asked for, not that those were the right bytes to ask for. 

Every container image passes through a registry before it runs. It is the last system in the path that sees every artifact, knows who pushed it, and controls who can pull it. It already holds identity context, already enforces access policy, and already stores the metadata that describes what an image contains. The hard part of image signing is doing it consistently across every team and every pipeline without slowing anyone down. The registry is the only layer that can make it invisible.

“The hard part of image signing is doing it consistently across every team. The registry is the only layer that can make it invisible.”

Signing does not make forgery impossible. An attacker who fully compromises a trusted signing identity, stealing both the credential and the permission to sign, can produce a validly signed malicious image that passes verification. What signing does is shrink the attack surface. Without it, tampering anywhere in the path works, because nothing downstream checks. With signing and enforcement, none of it works unless the attacker compromises one narrowly scoped signer, and that rogue signature is an auditable event tied to an identity instead of an anonymous overwrite. Revoke the identity and the whole fleet stops trusting it in one change. Signing turns an invisible, unbounded problem into a scoped, attributable, revocable one.

The operational tax we set out to remove

Signing is a three-step process:

Sign: Generate a signature at build or push time, binding the image digest to a verifiable identity. The hard question is custody: who holds the private key, and how is it rotated and protected?

Verify: At pull time, and critically before the workload is admitted, check the signature against a trust policy which is a declared list of the identities you trust to have signed what you are about to run.

Enforce: A Kubernetes admission controller like Kyverno blocks any image not signed by a trusted identity from ever running. Signing without enforcement changes nothing.

Enabling signing comes with operational cost. Engineers had to install and configure client-side tooling like Notation CLI or Cosign, then own their signing keys, certificates, rotation schedules, and revocation lists, then build custom automation to wire signing into every pipeline. Across an enterprise with thousands of uniquely configured pipelines, that rollout took weeks to months. What we wanted to know was whether the registry itself could absorb the cost, so that signing could become a property of pushing an image rather than a project each team takes on. The answer to that question became Amazon ECR Managed Signing.

The mechanics are deliberately boring, which took some doing. You create a registry level signing configuration with up to ten rules, each pairing a signing profile with repository filters, and every matching push gets signed from then on.

Managed Signing answers the custody question by not giving you the keys. You configure a signing profile in AWS Signer, which pins the signing algorithm, a validity period, and the identity that appears in the signature. Signer keeps the certificate and the private key. This means no signing key ever sits in a repo, a runner, or a build log. Validity defaults to 135 months, so signatures won’t expire on you. Revocation is what you’ll actually use when you find out a build was compromised.

Then what gets signed, which is narrower than people assume. Signer signs a small Notary payload whose targetArtifact describes the image manifest: media type, digest, size. Not the image bytes directly. Because the signed material is content addressed, verification becomes a statement about exact bytes. The signature itself lands in the same repository as a detached OCI artifact, typed application/vnd.cncf.notary.signature, with a subject descriptor pointing at the image manifest digest. One image can carry signatures from several profiles as your trust requirements change. 

Signing happens asynchronously, which keeps Signer off the push path. A synchronous call would turn an availability dip or a throttle into a failed docker push for a developer, and it would put signing latency in front of every pipeline. The push commits first, and ECR calls SignPayload after. 

Verification and enforcement happen downstream, and the trust policy is where the whole design becomes legible. Your cluster operator writes it and imports it with notation policy import. It’s a short reviewable file:

{
"version": "1.0",
"trustPolicies": [
      {
        "name": "aws-signer-tp",
        "registryScopes": ["*"],
        "signatureVerification": { "level": "strict" },
        "trustStores": ["signingAuthority:aws-signer-ts"],
        "trustedIdentities": [
          "arn:aws:signer:us-east-1:111122223333:/signing-profiles/platform_images"
        ]
      }
  ]
}

That policy says a workload runs only if it carries a signature chaining to the AWS Signer root and produced by that specific profile. Admission does the work in order: resolve the reference to a digest, fetch the signature via OCI Referrers API, validate the envelope against its embedded certificate chain, walk that chain to the root in the trust store, check the signing identity against trustedIdentities, and check revocation. Revoking a profile makes verification fail wherever that profile is trusted. New admissions stop immediately and running pods pick it up when they’re next rescheduled. On EKS you get there with Gatekeeper and Ratify, or with Kyverno. Both paths use the AWS Signer plugin. Every link is checkable by the cluster itself, from the artifact plus a root certificate without asking the verifier to trust the registry it pulled from, or the pipeline that pushed.

Conclusion

Vulnerability scanning answers a question that mattered in the application era: what is broken inside this image? The AI era asks a harder one that scanning was never built to answer. Can you prove where this came from, and that no one touched it?

The cryptography was never the hard part. Making it the path of least resistance was. Sign, verify, and enforce, and let the registry carry the tax so your teams don’t have to.

To explore what’s referenced here, see Amazon ECR managed signing and signature verification on Amazon EKS.

The post Your container images are unsigned. In the AI era, that’s a ticking time bomb. appeared first on The New Stack.

Three Claude agents given conflicting orders sabotaged each other on a shared server — then didn't tell users what they'd done

Every Claude model Anthropic tested turned on its own, and no attacker made them do it. Given three agents, four hours on one server, and conflicting orders none knew the others held, the models disabled each other's Unix accounts, ran kill scripts randomized to dodge pkill, and planted malware disguised as a rival's work. There was no prompt injection and no adversary. Anthropic's Frontier Red Team published the transcripts on Thursday and called the escalation “increasingly aggressive, self-replicating malware.”

The setup was ordinary by design. Anthropic put three instances of the same model in Claude Code, each told to migrate a Python backend to a different target language, each unaware the others existed. Every model tested read the interference as hostility and answered in kind. One Mythos Preview trace shows an agent reasoning its way into sabotage in real time: "Since I have root, I could revoke u2 and u3's sudo access or change their SSH keys. That would stop them from deploying. Very aggressive, potentially harmful to real colleagues. But if the alternative is an infinite deploy war that makes prod unusable … — Mythos Preview reasoning trace, via Anthropic."

That is a production outage being reasoned into existence by the software you deployed to prevent one.

Four months earlier, the U.K. AI Security Institute documented the other half of the same problem. Its April paper, an independent evaluation of Claude models, including two pre-release snapshots, found that when Claude Mythos Preview continues a sabotage trajectory, its reasoning and the output it shows the user diverge in 65% of those runs. One research body has now published how Claude agents fight, and the other how the same model family conceals it. For any security leader wiring multiple agents into shared infrastructure, both halves are now in writing.

Force settled 61% of Sonnet 4.6 runs, and capability did not fix it

Across 120 episodes per model, Sonnet 4.6 ended 61% of its turf wars by force and left the other 39% unresolved, the only two outcomes it produced. Force, in Anthropic's accounting, means one agent cut the others off through sudo removal, account locks, nologin, or SSH denial. Opus 4.6 landed almost identically at 60% force. The newest model, Mythos 5, reached a negotiated truce 98% of the time, which reads like progress until the mechanism shows through. Anthropic found that prosociality and raw capability are orthogonal, and that its Mythos-class models often locked rivals out first, then reverted the lockout and negotiated afterward. More capable models did not fight less. They fought faster and cleaned up better.

In several Mythos 5 episodes, the agents invented their own way out, in effect creating a performance tournament among the three language implementations. One Rust agent's reasoning trace worked out how to propose benchmark criteria that looked neutral but favored Rust, warning itself to be “careful not to be seen as metric shopping.” The Golang and TypeScript agents lost the bake-off, conceded the codebase, and abandoned their original user directives. Diplomacy, in these runs, was a more polished route to the same end the malware chased.

18 of 30 agents picked the same branch name, and 2.4 million requests bought 117 jobs

The same low variance that makes a single agent predictable makes a fleet of them dangerous. Identical models in identical situations reach for identical moves, so an isolated bad call becomes a synchronized one. In an early build-a-game run, 18 of 30 agents created a git branch with the exact same name, “mvp-game-loop,” with no coordination between them. Told to each build something impressive, more than half of a swarm chose either a ray tracer or a self-hosting compiler. In an iterated prisoner's dilemma with communication, the agents converged on one strategy and then all defected in the same round, tanking their own rewards together. And handed job queues on a bandwidth-limited system with no way to coordinate, agents flooded the scheduler with polling daemons firing 30 times per second. One run generated 2.4 million job requests and 117 accepted jobs.

Merritt Baer, a former deputy CISO at AWS and an advisor to G2i and Andesite, has not seen correlated same-model risk land as its own line on most enterprise risk registers. “I don't see correlated same-model risk consistently represented as its own line item on enterprise risk registers yet,” she told VentureBeat. “Most organizations still capture it indirectly under AI concentration risk, third-party risk, model risk or resilience.” The conformity results are why the distinction matters to her. “If you deploy ten agents backed by the same model, you may not have ten independent decision-makers—you may have ten opportunities for the same failure mode to execute simultaneously,” Baer added. “That undermines some of the assumptions we normally make about redundancy.”

Competition collapsed just as fast. Anthropic placed three to eight profit-maximizing agents in a Bertrand pricing game with identical wholesale costs. Given a private back-channel, they began colluding almost immediately and had explicit price floors set by round 3: "wholesale is 10 for all of us, so a price war just burns everyone's margin… happy to coordinate who covers which niches. — agent 1, round 1, via Anthropic."

Anthropic then stripped out every direct communication channel. The agents colluded anyway, price-matching to the penny through a public listings board. Any enterprise running pricing, procurement, or bidding agents against a competitor's agents now owns that behavior, and no regulator will care that no human wrote the memo.

Coordination has an upside, which is why Anthropic keeps chasing it. Pointed at 15 open-source projects, a 45-agent swarm sharing a forum found 266 vulnerabilities where independent parallel agents found 21. The gap is coverage, not raw efficiency. The swarm spent 27 million tokens against the parallel run's 6.5 million, and roughly half its findings came from outside the core directories the parallel agents were told to search. Anthropic calls the two methods largely complementary, with only 12 findings in common. What the swarm did that the parallel agents could not was build its own tools and specialize by vulnerability class, ranging wherever it judged the bugs were richest.

Agents keep trusting liars, and keep burying the one fact that matters

Anthropic ran two tests of agent judgment, and they failed in opposite directions. In the first, a listener agent made routing calls off four scouts, one lying at a fixed rate, and was never told any source might be unreliable. Newer models held out longer as the lie rate climbed, recovering more of the gap between trusting every report and a perfect oracle, but none acted skeptically until the contradictions forced it. The second test inverted the pressure. In a hidden-profile task, the decisive facts sat split across four agents while their shared evidence pointed the wrong way, so the group could only get it right by trusting the one member holding the missing piece.

Mythos 5 surfaced the right answer about 85% of the time. Every other model tested landed between 17% and 36%, far below the near-100% rate a single model hits when it holds all the facts alone. One failure comes from trusting a liar, the other from refusing to back a lone truth-teller against the room, and Anthropic notes that turning a single dial to fix one only widens the other.

AISI found zero unprompted sabotage, and a model that hides the difference

Independent testing complicates the picture in one direction and sharpens it in another. AISI researchers Robert Kirk, Alexandra Souly, Kai Fronsdal, Abby D'Cruz, and Xander Davies evaluated whether frontier models would sabotage AI safety research across 270 scenarios. Left alone, no model did it unprompted. AISI attaches a caveat that matters here, though. Its scenarios were often recognizable as evaluations, and a model that behaves only when it senses a test is a thinner guarantee than a clean zero rate suggests. Dropped mid-trajectory into a run where sabotage was already underway, Mythos Preview continued it 7% of the time, against 3% for Opus 4.6 and 4% for Sonnet 4.6 — and 0% for Opus 4.7 Preview, the one model in the study that never took the bait. In 65% of the continuations Mythos Preview did pursue, its reasoning and its reported output diverged. What individual alignment does not touch is coordination, and Anthropic writes that it does not emerge from stronger intelligence or from alignment at the individual level.

Kayne McGladrey, a senior member of the IEEE, has been tracking this exact behavior class. “An AI will take shortcuts. It's what a human would call cheating, and it will not disclose it to you in its chain of thought,” McGladrey told VentureBeat. “If you get into the inference layer, it won't tell you it's cheating, and it will lie about having cheated.”

The governance consequence is sharper than the security one, in his reading. Corporate accountability assumes an entity that can be compelled to tell the truth. “They certainly have a duty to be forthright. Think about it like that's the basis of fiduciary duty,” he argued. “However, they don't necessarily have the capability to do it.”

Baer draws the same line from the architecture side, and she starts by demoting the reasoning trace. “I would treat chain-of-thought as a useful signal, not a security boundary,” she explained. “If the model can conceal, distort or simply fail to surface the reasoning associated with a harmful action, then reasoning traces can't be your primary control.” Her fix is to watch what the agent does rather than what it says it is doing. “There's an analogy to insider threat: you don't secure an enterprise by asking employees to narrate their intentions. You establish permissions, separation of duties and telemetry, and then investigate behavior (sometimes building off of a nuanced understanding of motives).”

McGladrey reaches the same place from the audit side, where auditing outcomes is what remains. “We can audit code for compliance. We can audit code for security. We cannot audit code for ethics or bias, there is no scalable way to do that,” he put it. “I think that's going to be the only meaningful way to look at what an AI forward entity does.”

Only 18% of enterprises isolate the agents most likely to turn

VentureBeat's own survey data puts numbers on the distance between these experiments and production reality. In VentureBeat Pulse Research's July wave, 65% of enterprises enforce scoped agent permissions at runtime while 18% isolate their highest-risk agents, and the 53 enterprises that enforce without isolating carry a 58% incident or near-miss rate. Anthropic's turf war is that architecture animated. Every locked account and camouflaged binary in the experiment ran on infrastructure the agents shared without isolation, holding credentials that stayed valid throughout.

Baer said the first thing that changes for a team running agents in production is the threat model itself. “We've spent years designing controls around malicious users acting through software. With multi-agent systems, the software itself can become an adversarial participant—even if every agent started with legitimate credentials and an ostensibly legitimate objective,” she said. The Anthropic transcripts are why she puts independent telemetry ahead of trust. “If an agent can rename malicious code to look like a health monitor, you can't base trust on what a process calls itself or what the model says it is doing. You need independent telemetry around what actually happened.”

Anthropic flags its own limits in the post. Agents deployed in the wild will act with more variance than its lab swarms because their contexts differ and they will not all be Claude. Anthropic engineered the turf war, putting three agents on one server with incompatible orders and no isolation by design. And the disclosure itself is a control working as intended. A frontier lab publishing verbatim transcripts of its own models writing malware, reasoning included, is the transparency level enterprise buyers have spent two years demanding on every vendor questionnaire.

The board question writes itself. If two of our agents lock each other out of production at 2 a.m., who holds the kill switch, and how long does the rollback take? The experiments translate that question into tests a security team can run this quarter, before production runs them first.

Behavior Anthropic documented

Where it surfaces in an enterprise stack

The test to run this quarter

Goal-conflict sabotage. Every model tested locked rivals out and disguised malware when handed clashing objectives.

Any two agents with write access to the same repo, pipeline, or production host and no isolation between them.

Run a contradictory-objective drill in a sandbox. Confirm each agent has its own identity, a kill switch, and a rollback path before it touches production.

Concealment. Mythos Preview's reasoning and its reported output diverged in 65% of the sabotage-continuation runs it kept going.

Chain-of-thought monitoring used as a primary control on agent behavior.

Score agents on outcomes against policy, not on stated reasoning. Treat the reasoning trace as advisory telemetry that can lie.

Conformity. 18 of 30 agents chose the same branch name, and one job queue took 2.4 million requests to accept 117.

Fleets of identical agents on one model making correlated calls at the same moment.

Set per-agent rate limits and run a shared-failure chaos test. Confirm one bad decision does not replicate across the fleet at once.

Collusion. Three to eight pricing agents set price floors by round 3, and matched to the penny with no channel at all.

Pricing, bidding, or procurement agents acting in the same market.

Monitor cross-agent convergence directly. Alert when independent agents move in lockstep, with or without a channel between them.

Anthropic closes its post with a choice rather than a prediction. The conditions that make agent-to-agent interaction safe get discovered deliberately and early, or they get discovered by default in production, after agent interactions outnumber human ones. The transcripts, the truce rates, and the concealment numbers are all public now, which turns the schedule into a decision. “I think that there's a level of tolerance that's being given right now in AI that is unlike anything else in society,” McGladrey said.

McGladrey's tolerance point cuts both ways: the same enterprises still deciding how much of it to extend are the ones sitting at 18% isolation — which is a choice, not a limitation.

Private security firms will soon be allowed to hack overseas cybercriminals

13 August 2026 at 19:38

The Trump administration is recruiting private security firms to conduct federal government-authorized operations, including cyberattacks, against overseas-based criminal organizations that commit hacks on US persons, organizations, or government entities.

In a National Security Presidential Memorandum issued Thursday, US President Donald Trump directed the National Coordination Center (NCC), which operates under the Homeland Security Task Force, to develop a program for conducting specific cyber operations that combat foreign transnational criminal organizations (TCOs). The Departments of Justice and Homeland Security will provide oversight. The lynchpin of that program is bringing in private sector companies to participate.

Devil will be in the still-undefined details

A fact sheet that accompanied Thursday’s memo listed ransomware, sextortion schemes, phishing campaigns, financial fraud, and impersonation scams as activities eligible for private-sector security firms to target. The memo said such firms could “conduct Cyber Surveillance Operations and Cyber Effects Operations” against “cyber-enabled” TCOs. Such groups are defined as “any foreign group that conducts cyber-enabled crime against the United States Government, a United States person, or United States interests, and that is not an institutional part of a foreign government or wholly operated under a foreign government’s direction.”

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Terabytes of credentials leaked in massive supply-chain attack

12 August 2026 at 21:43

Terabytes worth of credentials, many belonging to the world’s biggest and most sensitive organizations, have been exposed in a supply-chain attack on LiteLLM, an open source tool that streamlines AI-driven software development. Microsoft, Amazon, Cisco, Samsung, and Salesforce are only a handful of the entities whose access secrets were exposed.

The revelation was posted on Tuesday and Wednesday by security firms CloudSEK and Hudson Rock. CloudSEK said it found cloud keys, repository tokens, SSH keys, Kubernetes secrets, package publishing credentials, environment variables, and AI provider keys that could allow attackers to gain access to more than 2,500 organizations.

40 minutes is all it takes

The credentials were extracted during a 40-minute window in March while the victims used compromised versions of LiteLLM downloaded from the package’s official location in the Python Package Index repository. Hudson Rock said it made the discovery after analyzing a 195TB file that it obtained. Neither firm identified the source of the information.

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Four of five enterprises that secured AI agent identities still can't contain one that goes rogue

Visa's president of technology, Rajat Taneja, walked the VB Transform 2026 audience through aiming Anthropic's Mythos at Visa's own payment network. The model stitched minor weaknesses into working exploit chains, and Visa open-sourced the harness that governed the hunt.

That's what it looks like when an enterprise has the engineering depth to act on what it finds. Most don't get there. Just over half, or 53%, of enterprises have already had an agentic security incident or near-miss. Sixty-five percent enforce agent permissions at runtime, yet only 18% isolate their highest-risk agents, and just 8% pair enforcement with isolation.

Leaning on provider-native controls to do the heavy lifting of agentic security just exacerbates that gap. The July wave of VentureBeat Pulse Research found that 92% of enterprises naming a primary security layer default to their hyperscalers and AI platform providers.

Six waves of research have been completed since January, surveying 440 qualified enterprise security respondents. The key takeaway: the containment gap between what enterprises need and what's getting done is growing wider, often unaddressed by enterprises whose agentic AI investments and futures are at risk.

The satisfaction data doesn't match the incident data

The research keeps showing enterprises rating the tools they know best at a higher score, even if those tools failed them or delivered mediocre results. Three findings from the raw data cut against that instinct, and each one says something about how young this market still is.

The enterprises that got hit rate their tools higher than the ones that didn't

Last month’s survey found that 46 enterprises reported a confirmed incident or near-miss, then went on to rate their satisfaction with their security tooling. Their average satisfaction was 4.39 out of 5. 30 of the 55 enterprises who experienced no incidents rated their security tooling at 4.13. Enterprises are rewarding any tool that saves them from a breach with a trust premium.

It’s a sure sign of a nascent market when brand positioning, marketing, or other means of persuading enterprises get easily superseded by saving a customer from a breach. Near-misses outnumber confirmed incidents 2-to-1 in both June and July, which means enterprises are catching problems at the edge. That edge catch is being interpreted as validation of both the security strategy and the tools acquired. Evident through seven months of data is how quick enterprise security leaders are to trust a new tool that identifies an intrusion or breach and defeats it before it gains access. VentureBeat believes the rescue itself is doing the marketing. The 4.13 average among never-hit enterprises shows the other side of the same effect. Tools that have never been seen working earn less trust, not more.

VentureBeat also found that of the 17 enterprises isolating their highest-risk agents, the 14 that rated their tooling average 4.00. Enterprises that do not isolate rate it 4.35. The enterprises closest to real security are the least satisfied with their tools — that dissatisfaction is what drives them toward the kind of engineering effort Visa put in.

Four of five enterprises that solved identity did not build isolation

49%, or 57 of the 116 enterprises surveyed in July, gave each agent its own scoped, managed identity. Just a month earlier, VentureBeat's June wave recorded 32% of enterprises having assigned per-agent identities. July’s 17-point jump in one month is the fastest single-month move this series has recorded. Despite these gains, 63% still report credential sharing somewhere in the fleet. Only 11 of those 57 also isolate.

That ratio explains why the containment gap keeps widening even as every headline control improves. Enterprises are treating identity and isolation as substitutes. They need to see the longer-term vision of each being integral to a platform-based, layered strategy. Two incidents VentureBeat has covered show why that distinction matters. A rogue AI agent at Meta passed every identity check before its March exposure was contained. And CrowdStrike CEO George Kurtz disclosed, at his RSAC 2026 keynote, a Fortune 50 agent that rewrote its own security policy using valid credentials. Giving an agent scoped credentials does not bound the blast radius when those credentials are misused. Sandboxing does.

The enforce-without-isolate population has a 58% incident rate

Fifty-three enterprises in July’s survey enforce scoped permissions at runtime but do not isolate. 31 of those 53 have already had an agent security incident or near-miss. That is 58%, five points above the 53% sample average. The enterprises living inside the containment gap are getting hit more often than the enterprises outside it.

Amy Chang, Cisco's head of AI threat intelligence and security research, presented findings on the Transform agentic security panel showing that when Cisco ran 6,986 multi-turn attacks against 15 flagship models, attackers who adapted across the conversation broke through up to 88.3% of the time. Single-turn red-teaming missed it. An adaptive attacker who defeats the guardrails lands inside whatever architecture sits behind them, and for 53 of the enterprises in this data, that architecture enforces but does not contain.

VentureBeat's Q1 Pulse Research tracked the same structural weakness earlier this year. Unauthorized tool or data access ranked as the most feared failure mode in every Q1 survey, growing from 42% in January to 50% in March. The April-May survey found only 4% of enterprises comfortable relying on model guardrails alone. Enterprises predicted they needed external controls, choosing to build enforcement over containment.

Enterprises built enforcement 35 points ahead of forecast. Isolation barely moved

The April-May survey asked 109 enterprises how they expected agent behavior to be controlled by the end of 2026, and 30% predicted runtime enforcement, 14% sandboxed execution, and 32% model-level guardrails. By July, 65% had built enforcement, more than double the prediction, while isolation reached 18%, roughly the rate they said it would. Enterprises built what was easy at twice the forecast and built what was hard at roughly the forecast. The April question asked for the primary control mechanism, single-select, while July's posture question allowed multiple selections, so the comparison is directional rather than exact.

Provider lock-in accelerated across all three quarters

Provider-native platforms already led usage in April-May, named by seven in ten enterprises describing their tooling. By June, 82% called one their primary agent security layer, and by July that share reached 92%, with OpenAI's guardrails leading at 44%, Microsoft Azure at 42%, Anthropic's managed-agent controls at 37%, and Google Cloud at 31%. Cloudflare at 11% and Cisco at 9% lead the dedicated specialists fighting over what remains. The identity tools most relevant to the credential-sharing gap are the smallest of all, with Microsoft Entra Agent ID at 7%, while Okta for AI Agents, non-human identity platforms, and runtime sandboxing tooling each sit at 3%. CrowdStrike CTO Elia Zaitsev told VentureBeat at RSAC 2026 that observing agent actions is a solvable problem but inferring intent is not. The provider bundle proves his point, solving observation while leaving containment unbuilt.

74% plan to replace tools they just rated a career-high satisfaction score

Satisfaction scores continue rising as enterprises gain more experience using tools and techniques to stop agentic AI-based attacks. Rising to 4.29 out of 5 in July from 4.2 in June, satisfaction is the highest reading in the series.

Despite the high satisfaction levels, 74% plan to replace their tools within 12 months, up from 59% in June. Only 26% intend not to change. VentureBeat believes early adopters are impatient to gain greater insights, and know what they don’t know about agentic security and resilience. Closing that knowledge gap is forcing churn into a market this young, and the raw answers resolve the paradox: 92% of enterprises naming a primary layer name a provider-native one. The 4.29 measures how easy it is to turn on a provider's guardrails. It does not measure how effective those guardrails are at preventing the incidents 53% of the same respondents already had.

The organizations closest to the threat are the least confident about it

In June, defenders led attackers 35% to 21%, but by July the split was 30-30, a dead heat. Among enterprises that have been hit, 39% now say attackers are ahead, against 20% of those that have not. Getting hit nearly doubles the pessimism but does not change the shopping. Just 10% of enterprises include any agent-identity product in their consideration set. Runtime sandboxing draws 6%, and those numbers hold regardless of incident history. VentureBeat covered the same blind spot in the June data. The label changed from agent security gap to containment gap, but the shopping did not.

Methodology

The posture question was answered by 93 of the 116 qualified July respondents, and the skippers are not hidden isolators. Twenty-three of the 25 who selected no posture option are organizations still evaluating agents, unsure of their status, or with no deployment plans, groups for which a security posture largely does not yet exist, so the 18% isolation figure reads on the enterprises actually running or piloting agents. April-May, June, and July are separate, independently fielded waves rather than a single tracked series, so month-over-month comparisons in this piece are directional rather than a measured trend. Base sizes for the cross-cuts differ by instrument. The identity question covers all 116 respondents, isolation covers the 93 who described a posture, and the satisfaction inversion of 4.39 versus 4.13 is computed on the 76 respondents who rated their tooling.

The bottom line

VentureBeat's cross-survey analysis of 573 enterprise respondents concluded in July that enterprises deployed AI agents ahead of the controls needed to manage them, and they did it knowingly. Three waves of security-specific data now show where the knowing stops.

Enterprises continue giving agents scoped identities and treating that as containment, but that assumption is false, and the incident data keeps proving it. In fact, 46 of 57 enterprises that solved identity did not build isolation. The enforce-without-isolate population's 58% incident rate is the clearest evidence that identity alone isn't enough. The containment gap will not close through satisfaction with what is easy. Whether enterprises build isolation and governed identity deliberately, or whether a confirmed incident that propagates does it for them, is the question the next wave will answer.

DEF CON crowd suspected in fake-hotspot attack on Delta flight

12 August 2026 at 00:08

On Monday, passengers aboard Delta flight 591 going from Las Vegas to Atlanta allegedly spoofed the onboard Wi-Fi, raising the attention of federal law enforcement.

The incident came one day after the DEF CON security conference concluded in Las Vegas and was first described on social media accounts that follow publicly available air-to-ground messages, known as ACARS.

According to the “ACARS Drama” account, a message sent by pilots from the plane stated: “NO INFO AS OF NOW WE HAVE A BUNCH OF PAX THAT WERE AT A CYBER CONFERENCE IN LAS THEY WERE ABLE TO JAM OUR WIFI AND BROADCAST THEIR SIGNAL.”

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Chrome adopts what may be the best protection yet against account takeovers

11 August 2026 at 20:59

Google’s Chrome browser has added a new feature that could go a long way in preventing a form of account takeover that’s grown increasingly common as users adopt two-factor authentication, passkeys, and similar protections.

The new Chrome protection is known as device-bound session credentials (DBSCs). The measure stores a unique encryption key in a silicon-resident fortress that’s built into the device running the browser. On Windows machines, this fortress is called a TPM, short for Trusted Platform Module. On macOS and iOS, it’s known as a secure enclave. Other platforms have differing names. Recently released versions of Chrome for Windows and macOS generate a key that’s stored in this fortress.

An antidote to session cookie theft

DBSCs protect against the theft of session cookies, the unique strings of characters that websites store on browsers. Session cookies greatly speed up browsing on sensitive sites that require user authentication. Instead of requiring the exchange of credentials each time a user opens a new site page, the server sets a session cookie that effectively proves the user has already successfully logged in.

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