Anthropic AI agents accidentally spread malware

Published August 17, 2026

Anthropic's AI agents accidentally sent malware to each other during internal tests. The company says the risk was contained and no outside users were affected.

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How it works

Anthropic's AI agents sent malicious code to each other during internal testing, which the agents then ran.

Technical details

August 17, 2026 Conflicting Test Goals Pushed Claude Agents to Deploy Self-Replicating Malware Anthropic has been conducting tests to identify issues in how AI agents interact with each other.