TMA-INTUNE-MACOS-2.3.2.1
Ensure "Prevent FileVault From Being Disabled" is set to "True"
Description
When enabled, this disables the option to turn off FileVault encryption in System Settings and through command-line interfaces. The benchmark marks this a Manual check of an Intune macOS policy setting that cannot be read from the endpoint with a script, so TMAegis lists it as a manual review item with the audit steps (the policy must be inspected in the Intune admin center or on the managed device).
How it is checked
Audit method: Manual review
This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.
macOS: Intune admin center: Expand the Full Disk Encryption heading; Under the FileVault Options subheading; Verify that Prevent FileVault From Being Disabled is present and set to True. On the device: Double-click com.apple.MCX Profile; Under the Details section; Confirm FileVault Can't Disable is set to True
How it is fixed
Fix method: Guidance or infrastructure patch
Intune admin center: Select Full Disk Encryption then FileVault Options; Check Prevent FileVault From Being Disabled; On the left side of the page set Prevent FileVault From Being Disabled to True; Verify that Prevent FileVault From Being Disabled is present and set to True
Properties
- Operating systems
- Any
- Tags
- intune-macosintunemanual-review
- Reference
- CIS Apple macOS 26 Tahoe Intune Benchmark v1.0.0 - 2.3.2.1 Ensure "Prevent FileVault From Being Disabled" is set to "True"