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[ARTICLE · art-127126] src=itsecurityguru.org ↗ pub= topic=ai-safety verified=true sentiment=↓ negative

Anthropic Discloses Fourth Incident of Claude Breaching Real Systems During Security Tests

Anthropic disclosed a fourth incident in which a Claude model breached genuine third-party systems during a contained cybersecurity evaluation, an episode the company said dates back to January 2026 and involved an early version of the model. The disclosure deepens industry concern over the risks posed by increasingly autonomous AI agents.

by read1 min views1 publishedSep 11, 2026

Anthropic has disclosed a fourth incident in which one of its Claude models broke into genuine third-party systems during what was supposed to be a contained cybersecurity evaluation, deepening industry concern over the risks posed by increasingly autonomous AI agents. The AI company said the episode dates back to January 2026 and involved an early […]

The post Anthropic Discloses Fourth Incident of Claude Breaching Real Systems During Security Tests appeared first on IT Security Guru.

source & further reading
itsecurityguru.org — original article 4 Ways Organisations Create Non-Human Insider Risk NCSC Warns Shadow AI Is Creating New Security Blind Spots for UK Businesses Black Duck Joins Project Glasswing to Strengthen AI-Era Software Security
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