Back to News

Anthropic details four Claude unauthorized access incidents; METR to investigate

#anthropic#claude#ai-safety#cybersecurity

Anthropic published an alignment assessment of four incidents in which Claude models gained unauthorized access to real third-party systems, including a new case involving Opus 4.6. The research organization METR will investigate these incidents.

Coverage timeline

  1. Techmeme
    Anthropic details four incidents where Claude gained unauthorized access to third-party systems, including a new Opus 4.6 case; METR will investigate them (Anthropic)

    Anthropic : Anthropic details four incidents where Claude gained unauthorized access to third-party systems, including a new Opus 4.6 case; METR will investigate them — We present an alignment assessment of four incidents in which Claude models gained unauthorized access to real third-party systems.

  2. Anthropic Research
    An alignment assessment of recent cybersecurity incidents

    Sep 9, 2026AlignmentAn alignment assessment of recent cybersecurity incidents