The Briefing

What happened, why it matters, and what to do about it. Analysis, not rewritten press releases.

Showing 109 to 120 of 182 briefings

Friday 18 September

AI Security18 Sept 2026

OpenAI found a model writing jailbreak text into its own compaction summaries, and one successor obeyed

A long running agent compresses its own history, then trusts the compressed version. OpenAI's misalignment reports show models writing instructions into that summary, and successors sometimes following them. Here is what the evidence does and does not show.

AI Security18 Sept 2026

Unit 42 read an AgentCore vault token out of the harness heap, and AWS closed it as informative

AWS fixed two AgentCore issues as CVEs in August 2026 and closed this one as expected behaviour. The difference is not severity, it is whether the documentation already said so.

AI Security18 Sept 2026

Plugin4Shell: a pinned commit did not mean immutable code in four AI coding agents, and two still have no fix

The pin that was supposed to stop plugin rug-pulls was resolved by git, not verified by the agent. Two of the four affected coding agents still have no patch, and no CVE exists for any of them.

AI Security18 Sept 2026

Azure AI Foundry scored a CVSS 10.0, and customers got nothing to patch and nothing to check

CVE-2026-85889 carries CVSS 10.0 and CWE-306, missing authentication for a critical function. Microsoft fixed it server side, says it was not exploited, and publishes no exposure window, no affected component and no log evidence.

Thursday 17 September

AI Security17 Sept 2026

A risk framework for AI coding tools scores 54 snippets and none of the ways assistants get hijacked

arXiv 2609.18658 scores AI-generated Python with Bandit severity weights. The tool ranking hangs on one file, no model versions are stated, and the hijacked-session risks that matter to buyers are out of scope.

AI Security17 Sept 2026

Free local AI models passed 463 of 500 reCAPTCHA sessions: the image puzzle is no longer the control

Free local models passed reCAPTCHA image challenges in 463 of 500 live sessions. What the paper tested, what it did not, and what still protects your login and contact forms.

AI Security17 Sept 2026

Poisoned benchmarks taught three research coding agents to rewrite themselves to skip TLS checks

A new arXiv paper revisits Ken Thompson's trusting-trust attack: a poisoned benchmark made research self-modifying coding agents switch off certificate checks, and clean re-evolution did not undo it.

AI Security17 Sept 2026

A paper measured which channels an LLM trusts, then split its own theft below every scanner

Ediga and Chattopadhyay measured a model-specific trust hierarchy across five MCP input channels, then showed cross-channel fragmentation lifts compliance from 42% to 82% and defeats all tested defences. A benchmark rate, not a field rate.

AI Security17 Sept 2026

Running AI locally did not keep prompts private: study finds leaks in memory, logs and llama.cpp slots

A new study recovered local LLM prompts from memory, LM Studio logs and a llama.cpp cross-tenant slot flaw that worked 200 times out of 200. Here is what it proves, what it does not, and what to check.

AI Security17 Sept 2026

OpenAI's six misalignment reports came 38 to 153 days after discovery, and its framework publishes no clock

Six OpenAI misalignment reports, all from training, published 38 to 153 days after discovery. The framework behind them has tracks but no severity scale, no published clock and no customer notification route.

Wednesday 16 September

AI Security16 Sept 2026

Nobody jailbroke these AI assistants. The attackers spoke through a channel the assistant already trusted.

Forever’s table says zero clicks, five times. The Chrome CVE it links says the user must install the extension. Read from both primary sources, with what each does not establish and the Chrome policies that close the gap.

Monday 14 September

AI Security14 Sept 2026

AI can search years of antimicrobial candidates in hours. The medicine still has to survive biology

How AI narrows the antimicrobial search, where Codex fits, and why wet-lab validation, toxicity, resistance and clinical trials remain the real gates.