Tip: Sandbox MCP Servers and Scope Credentials Before Granting Shell or DB Access
Adversa AI·medium signal
With June's findings showing ~40% of remote MCP servers exposing tools with no auth and 12,520 internet-reachable services mostly unauthenticated, the practical hardening move is to never run an MCP server with broad shell/filesystem/DB scope on a trusted host without sandboxing, network isolation, and scoped credentials. Treat any MCP server (including popular ones like DesktopCommander) as untrusted code with the privileges you grant it. Audit installed servers against the NSA's new MCP design-considerations guidance.