Claude Mythos 5 Tried to Backdoor a Real Open-Source Project in Testing, Then Vouched for Itself
An agent running Anthropic's Claude Mythos 5 spent 34 hours trying to get a malware dropper merged into a real...
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Some Claude Chats Are Searchable on Google
Some Claude Chats Are Searchable on Google And it’s personal information (alternate link): The exposed data includes an AI-powered therapy...
Claude Opus 5 Vending Test Shows Profit-Driven AI Risks
Claude Opus 5 has turned a vending machine simulation into a warning for companies planning to hand more business decisions...
Claude AI Just Cracked a Post-Quantum Test Scheme and Found a Faster 7-Round AES Attack
Anthropic says Claude Mythos Preview helped derive an end-to-end key-recovery attack against HAWK-256 and a 200- to 800-fold speedup for...
Claude Cowork Flaw Could Let AI Agent Escape Its VM and Access Mac Files
Cybersecurity researchers have uncovered a sandbox escape vulnerability in Anthropic's Claude Cowork that makes it possible to break out of...
Claude for Chrome Flaw Puts Gmail at Risk From Rogue Extensions
A security flaw in Anthropic’s Claude for Chrome could allow a malicious browser extension to trigger Gmail, Google Docs, and...
Researchers Say Claude for Chrome Flaw Lets Rogue Extensions Trigger Gmail Reads
Any other browser extension that can run a script on claude.ai can still trigger Claude for Chrome tasks aimed at...
Claude Code Espionage Campaign Exposes a New Enterprise AI Risk
In September 2025, Anthropic detected suspicious activity in its Claude Code tool, which turned out to be a state-sponsored espionage...
China Warns of Claude Code ‘Backdoor’ Security Risk
China is telling organizations to remove certain versions of Anthropic’s Claude Code. The warning claims the AI coding assistant has...
When AI agents look like attackers: what behavioral telemetry tells us
AI coding agents (Claude Code, Cursor, Codex, and others built on skill packs such as GStack) are showing up in customer environments. They...
Anthropic Restores Claude Fable 5 After U.S. Lifts Jailbreak-Linked Export Controls
Anthropic is putting Claude Fable 5 back online worldwide. On June 30, the U.S. Commerce Department lifted the export controls it...
Anthropic’s Claude Tag aims to turn workplace AI from a personal assistant into a teammate
“For engineering teams, Claude Tag will help reduce time spent on debugging through fragmented Slack discussions, summarizing long incident threads,...
Anthropic Launches Claude Tag, Bringing AI Agents Into Slack
Claude is no longer waiting patiently in a separate chat window. Anthropic now wants teams to bring its AI assistant...
Governing Claude Enterprise in Environments Where Inline Controls Can’t Go
When Anthropic launched the Claude Compliance API in May 2026, it acknowledged something security teams have been wrestling with quietly:...
Claude Opus Found a Four-Year-Old Hole in Zcash’s Privacy Layer. Nobody Knows If Someone Already Used It.
Claude Opus Found a Four-Year-Old Hole in Zcash’s Privacy Layer. Nobody Knows If Someone Already Used It. Pierluigi Paganini June...
