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

**Published:** October 5, 2026
**Author:** Dan Goodin
**Source:** Ars Technica — AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/mcp-for-agent-to-agent-comms-may-be-the-riskiest-protocol-you-ve-never-h

The adoption of AI agents in millions of organizations is creating new opportunities for attackers to make them take malicious actions, such as exfiltrating database contents and sensitive business and personal information. In the past five months, Google and four other…

> From the original source: **Ars Technica — AI**
> [Read full article at Ars Technica — AI](https://arstechnica.com/security/2026/10/vulnerability-in-agents-from-google-and-others-exposes-structural-flaw-in-mcp/)

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