『#16: Assume the Model Is Already Breached』のカバーアート

#16: Assume the Model Is Already Breached

#16: Assume the Model Is Already Breached

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Top Story: A Directive at 5:21 PM, Two Frontier Models Gone by Morning — For the first time anyone can easily point to, the US government used export controls — the tool that governs missiles and advanced chips — to pull a deployed, commercial AI model off the market. The "Are you sure?" box in your AI coding assistant can lie about what you're approving. — Researchers at Adversa AI disclosed two flaws affecting popular AI coding tools. An attacker can turn a tool your AI agent trusts into a remote-control channel — without ever touching your infrastructure. — Tenet Security disclosed Agentjacking, an attack that abuses the connection between AI coding agents and Sentry, a popular error-monitoring service. Two new papers make the uncomfortable case that the model layer is the wrong place to fix this. — One, recasting prompt injection through "Contextual Integrity" theory, argues for an impossibility-style limit: a model may never be able to reliably separate the instructions it should trust from the hostile text it reads. OWASP turns that thesis into a to-do list — and treats agent risk as something already in production, not a forecast. — Its updated "State of Agentic AI Security and Governance" starts from the assumption that the model can be fooled, then tells teams to spend their effort on the controls around it: watch what each agent actually does at runtime, give it its own identity and the narrowest possible permissions, and wire in a circuit-breaker that can cut a misbehaving agent off mid-action. A public threat-landscape roundup grounds all of that theory in May's real attacks. — Microsoft Security Research's May 2026 threat-landscape roundup (Tanmay Ganacharya) distills a month of public findings into three dominant patterns: software supply-chain compromise (poisoned and typo-squatted npm packages, plus hijacked maintainer accounts, planting code that steals build-pipeline and cloud credentials), identity-driven cloud intrusion (one stolen identity — abused through password-reset social engineering — cascading into a cloud-wide Microsoft 365/Azure breach, an actor Microsoft tracks as Storm-2949, alongside adversary-in-the-middle phishing and a macOS infostealer wave), and direct attacks on AI agent software (publicly exposed AI apps left unauthenticated, and remote-code-execution flaws in agent frameworks). Curator's Corner: The Wall Faces the Wrong Way Curated by Asaf Nakash. Voices by AI. Opinions by human. Show notes: https://contextwindowsec.com/episodes/2026-06-15.html
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