My top list:
-DE storage space locked with owner profile credentials
- App communication scopes
- encryption/decryption for external storage drive with Luks
- Phone encryption keys erased after 10 incorrect password/pin input (like blackberries)
Useful against thieves.
Never heard of any successful bypass of this feature on a blackberry device except by using chip-off on old models running BB OS 6-7 with encryption off (not set by the user)