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Practical guides to remembering secrets, logging in safely and authenticating AI agents.

• The memory palace techniqueBuild one step by step, and see what the research says.
• How to remember passwordsWhat to memorize, how long to make it and how to make it stick.
• Passkeys vs passwordsWhat really changes, and where passkeys fall short.
• MCP authenticationHow authorization works for AI agents and MCP servers.