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Prompt Infection

Showed that injections can replicate across multi-agent systems, with a message-tagging defence, anticipating the 2026 agent-worm incidents.

multi-agentprompt infectionworm

Research question

Can a prompt injection spread between agents in a multi-agent system?

Key findings

  • Self-replicating prompts propagate through agent communication channels - Attacks succeed in data theft, scam and system-wide disruption scenarios; tagging agent messages reduces spread

Sources

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