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Security · medium

5. FileVault, Keychain, and Secure Development

Protecting data and developer credentials on macOS.

1 min read3 questionsup to 50 XPtopic 5/5

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FileVault encrypts the startup disk so lost hardware does not expose stored data. Keychain stores passwords, certificates, tokens, and signing identities behind the user's security boundary. Prefer Keychain or a secret manager over plaintext shell files.

Gatekeeper, notarization, code signing, and privacy permissions also affect how applications run. Security controls should be part of the development workflow, especially for tools that handle wallet keys or production credentials.

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  1. 1. Read the explanation once end to end, skipping the code.
  2. 2. Re-read the code snippets and say out loud what each line does.
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Check your understanding

  1. 1. What does FileVault protect?

  2. 2. Where should a local development token preferably be stored?

  3. 3. What does code signing help establish?

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