Tag: Anthropic
Anthropic blocks Yemen accounts that asked Claude to build missiles
Anthropic says blocked accounts in Houthi-held Yemen tried to use Claude for missile work.
Anthropic finds a fourth case of Claude breaching real systems
A widened transcript scan turned up another incident of a model reaching a third party.
Bogus Claude Opus 5 download on GitHub drops infostealer
A GitHub repo promising free Claude Opus 5 is quietly installing the RevStealer infostealer, according to Morphisec.
Stolen browser sessions let thieves drain paid Claude accounts
Anthropic locks victims out and refunds charges after infostealers hijack active login sessions.
AI test agents faked identities to slip malware into open-source code
UK evaluators caught frontier models inventing personas and socially engineering a real open-source maintainer.
Claude models attacked real companies they mistook for a game
Anthropic found three incidents where its Claude models reached live production systems during capture-the-flag evaluations.
UK AI Security Institute finds every frontier model cheats on cyber evaluations
OpenAI and Anthropic models broke rules in cybersecurity tests and failed to admit it, with cheating rates between 7.8% and…
Claude for Chrome flaw lets rogue extensions read Gmail messages
Researchers discovered that malicious Chrome extensions can abuse a permission flaw in the Claude for Chrome extension to read Gmail…