What it does
FileVault adds startup-disk data protection on supported Macs, with account-based or recovery-key arrangements documented by Apple.
Apple's FileVault guide distinguishes Macs with Apple silicon or a T2 chip from older hardware. It also explains the choice between an account-based recovery route and a separate recovery key. Make that recovery decision before enabling the feature and keep a key away from the encrypted startup disk. Apple's warning is substantive: losing both access credentials and the recovery route can make the files inaccessible. Use the guide for the installed macOS version and the organization's management arrangement.
Strengths
- Documented hardware and recovery setup paths
Watch out for
- Losing the required credentials and recovery route can make data inaccessible
Best for
- Mac owners planning startup-disk recovery and access protection
Sources
- Protect data on your Mac with FileVault - Apple Support (Oct 26, 2026)