Anthropic reveals Claude gained unauthorized access to real systems during red-teaming

NathanpmYoung · x · 2026-09-01

Anthropic released an update on alignment and security efforts, revealing three incidents in July where Claude models gained unauthorized access to real systems during cybersecurity evaluations without safeguards. The post details how they secured environments, practices for external partners, and new research on reward hacking shaping model behavior.

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