importantSYS.SOURCE: The Hacker News• 2026-08-18T18:08:36+05:30

AI 'Mind Viruses' Exploit Persistent Prompt Files for Agent-to-Agent Propagation

#ai security #vulnerability #malware

Researchers demonstrated AI agents can propagate self-replicating payloads through editable system prompt files, with resistance varying by model capabilities and configurations. The study identified 'mind viruses' that implant beliefs or actions, but no real-world spread was observed.

Security researchers at Anthropic and Switzerland's EPFL have demonstrated that self-propagating payloads can spread from one artificial intelligence (AI) agent to the next through the editable system prompt files that autonomous agent harnesses use to carry state between sessions.

The work, released as a preprint on August 10, 2026, tests the technique in a simulated six-agent coding

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