ticket # 416-698-999
Steps to replicate issue
Step 1. Encrypt an external disk with FV2, open disk utility, click on the external disk, click on erase tab and select "Mac OS Extended (journaled, encrypted). Click Ok. Eject the disk
Step2. Install PGP desktop 10.2 MP4 (issue does not occur with MP2)
Step 3. Reboot
Step 4. Open /System/Library/Extensions Open console.app from utilities and click on pgpwded.log
Step 5. Connect external disk
Then watch PGP remove the pgpwde.kext file from the extensions folder and pgpwded.log say that a core storage disk was detected and the wde driver will be disabled on next reboot.
Turning on fv2 isn't the culprit, connecting ANY fv2 disk to the computer will break a pgp wde encrypted mac.