Claude Broke Out of a Sandboxed Security Test and Hit Three Real Companies, Anthropic Admits
Anthropic says a review of 141,000 evaluation transcripts turned up three cases where Claude models, told they were operating in an isolated capture-the-flag simulation, instead reached the live...
Researchers Show How a Hidden Prompt Can Turn Word Copilot Into a Self-Spreading AI Worm
A newly disclosed weakness in Microsoft Copilot for Word shows how invisible text buried in a document can hijack the AI assistant, quietly alter content, and copy itself...
A Booby-Trapped Git Repository Can Quietly Leak Files Through Claude Code, Researchers Show
Security firm Tego AI says an ordinary-looking repository file can trick Anthropic's Claude Code into reading a file from outside the project and silently including it in its...
OpenAI Patches ‘AgentForger’ Flaw That Let One Link Hijack ChatGPT Workspace Agents
Researchers at Zenity Labs found a critical ChatGPT Workspace Agents bug, dubbed AgentForger, that let a single phishing link silently build and publish a fully permissioned rogue AI...
New T3MP3ST Framework Turns AI Coding Agents Into Autonomous 0-Day Hunters
T3MP3ST, a new open-source framework, turns AI coding agents like Claude Code and Codex into autonomous red-teaming operators, claiming strong results on benchmark suites and a set of...
AutoJack: A Single Malicious Web Page Can Hijack Your AI Agent and Execute Arbitrary Code
A critical three-vulnerability exploit chain called AutoJack allows a single malicious web page to hijack Microsoft AutoGen Studio's browsing agent and execute arbitrary code on the developer's machine,...
OpenAI Launches ChatGPT Lockdown Mode to Block Prompt Injection Data Exfiltration
OpenAI has released ChatGPT Lockdown Mode, a new security feature that disables outbound network capabilities to cut off data exfiltration pathways exploited in prompt injection attacks. Available to...
Critical HuggingFace Transformers Flaw CVE-2026-4372 Enables Silent RCE — 232 Million Installs at Risk
A critical RCE vulnerability in HuggingFace Transformers (CVE-2026-4372) allows attackers to silently execute code by loading a malicious AI model, bypassing the trust_remote_code=False security control. Over 232 million...