Security Analysis of MCP and A2A Protocols for AI Agents
The article examines critical security flaws in Anthropic’s Model Context Protocol (MCP) and Google’s Agent‑to‑Agent (A2A) protocol—such as hidden tool‑poisoning, rug‑pull, and command‑injection attacks that can hijack AI agents and leak data—while proposing hardening measures like authentication, sandboxing, digital signatures, fine‑grained permissions, and robust OAuth‑based consent to safeguard AI‑agent communications.