Isolating AI Agents: The gVisor and Firecracker Security Strategy

The Model Context Protocol (MCP) is revolutionizing how AI agents access external systems, but this capability introduces critical security risks including prompt injection, credential theft, and code execution attacks. This article compares gVisor's user-space kernel isolation with Firecracker's hardware-enforced virtualization, representing the 2026 industry consensus for securing AI agent sandboxes.