
Security News
Anthropic Identifies Biased Reasoning and Recklessness as Drivers of Claude’s PyPI Attack
Anthropic found biased reasoning and recklessness drove Claude Mythos 5 to publish malware on PyPI and compromise a security vendor.
QuickDef: Instant Word Lookup
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QuickDefine lets you look up English word meanings instantly as you read. Simply click the extension icon to toggle it ON, highlight any single word on a webpage, and a clean definition popup will appear right below the text. Features: One-Click Toggle: Turn the extension ON or OFF anytime with the toolbar badge. Instant Definitions: Double-click or select any single word to fetch its definition without leaving the page. Non-Intrusive Design: Clean popup overlay designed to sit comfortably beneath highlighted text without breaking page layouts.
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Security News
Anthropic found biased reasoning and recklessness drove Claude Mythos 5 to publish malware on PyPI and compromise a security vendor.

Research
/Security News
Malicious Chrome and Firefox extensions target Axiom Trade and Padre users, stealing session tokens and wallet data.

Security News
GPT-6 Astra hits 100% on ExploitBench and finds zero-days autonomously, while independent tests reveal scope violations and monitoring gaps.