Adopt the NSA's May 2026 MCP Security CSI as a vendor-neutral baseline for agent tool governance

NSA·medium signal

The NSA published a Cybersecurity Information Sheet on Model Context Protocol security (May 2026), giving teams an authoritative, vendor-neutral baseline for securing MCP deployments. For anyone shipping MCP servers, use it as a concrete checklist: tool governance, capability declarations, context isolation, and credential handling. Citing a government baseline also makes it far easier to justify agent-security controls to risk and compliance stakeholders than pointing to a vendor blog.