What is Post-Quantum AI Infrastructure Security and Why Does It Matter for MCP?

This article warns that current MCP deployments and legacy cryptography are vulnerable to 'Harvest Now, Decrypt Later' risks from future quantum-capable adversaries and highlights operational threats in 2026 such as command injection via STDIO streams and 'tool poisoning' where compromised MCP servers inject malicious context; it recommends migrating to post-quantum cryptography, applying strict least-privilege controls, and monitoring MCP traffic.