For those of you who joined us for last night's TUAW Talkcast know that one of the Mac OS X 10.6.5 issues that we discussed dealt with PGP WDE (Whole Disk Encryption), a Symantec product that is used to encrypt an entire hard drive. PGP WDE is very useful to those who carry sensitive information on their MacBooks, as they can be assured that nobody can access the info or even boot the machine without knowing the encryption password.
Mac OS X 10.6.5 "broke" PGP WDE, with users of the product unable to boot their Macs at all. Rich Mogull at TidBITS looked into the issue and provided a wonderful explanation of how
