- Password protect a folder macOS has no lock button for folders. Here are the free ways that work (an encrypted disk image, FileVault, your login) and what each one protects.
- Encrypt files on a Mac Encrypt files on a Mac with FileVault, an encrypted disk image or a password-protected PDF, and see what each one protects before you choose.
- Hide photos on a Mac Hide photos on a Mac with the Photos Hidden album and its lock, what that lock really keeps out, and how to keep private photos encrypted instead.
- Keep ID scans safe Where to keep passport, ID, contract and tax scans on a Mac: locked notes, encrypted disk images, FileVault, or a vault, and what each protects.
- Store two-factor backup codes Two-factor backup codes get you back in when your phone is gone. Where to keep them on a Mac or on paper, and what each place protects against.
- If your Mac is stolen What to do if your Mac is lost or stolen, with Apple’s steps, and the settings that decide whether your files are safe before it happens.
- Secure a shared Mac Sharing a Mac with family or housemates? Set up separate user accounts, FileVault and the lock screen, then add a vault for what others must not see.