Mac OS
System-wide search mechanism on MacOS.
<HINT: LGSPTOTIH>
SPOTLIGHT
MacOS's hard disk encryption utility.
<HINT: VUTAL ELFI>
FILE VAULT
One of MacOS's security feature.
<HINT: ETAGKPEEER>
GATEKEEPER
MacOS's native office suite
<HINT: WKIOR>
IWORK
MacOS's feature of device transition.
<HINT: YITCONUNIT>
CONTINUITY