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MCP Security Explained: How AI Agents Connect to Tools Safely
Software Development SecurityCISSPSecurity+
AI agents can now read your files, query databases and act in online services through MCP. In this video, I'll walk through the Model Context Protocol (MCP) architecture, from the user and the host to clients and local and remote servers, and the controls that keep those connections safe.
What you will learn
- What MCP is, who created it, and who governs it today
- The architecture: user, host, clients, and local and remote servers
- What servers offer: tools, resources and prompts
- Built-in controls: user consent, isolation, and untrusted tool descriptions
- Securing remote servers: OAuth 2.1, audience-bound tokens, no token passthrough, least-privilege scopes
- Securing local servers: sandboxing and showing the exact command
- Three tip ideas: protocol ≠ enforcement; description ≠ trust; local ≠ safe