From MDM server, we push a DiskEncryption profile to enable FileVault and chosen Personal as the recovery type. Once the profile lands on the system, we execute the command fdesetup changerecovery which prompts the user to complete the authentication. Then a file named FileVaultPRK.dat is getting created in /var/db directory. Though the file presents in most of the devices after certain time, we noticed that the file FileVaultPRK.dat got removed in few devices.
We would like to know on what basis the file would get deleted from the macOS device? (except removing the DiskEncryption profile.)
Thank you in advance.