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Safety

MCP for agent-to-agent comms may be the riskiest protocol you’ve never heard of.

Ars Technica AIAnalysis or commentary·
AI brief

A new protocol for agent-to-agent communication has trust gaps that let malicious prompts spread between agents.

Why it matters: Flaws in agent-to-agent communication could allow malicious prompts to propagate from one agent to another.

Written by AI from Ars Technica AI's published text.

Source

“Trust gaps in the new protocol spread malicious prompts from one agent to another.”
Ars Technica AI, 05 Oct 2026, 22:26.

Interpretation or community commentary rather than straight reporting.

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