PGP Corporation has announced a forthcoming update to Whole Disk Encryption, its enterprise-level security program. As implied by its name, the application encrypts everything on a hard drive or flash stick, including swap and temporary files, to the FIPS 140-2 level required by the US government. Version 9.9 will be the first edition of this software for the Mac, and should be released sometime in July.

A major feature of the software is pre-boot authentication, meant to safeguard storage if it is lost or stolen. Without the proper key, WDE locks down all possible information on a drive including boot sectors, rendering it effectively unreadable. The program can be used in tandem with the PGP Universal Server to manage keys, policies, configurations and deployment. No prices have been announced, but WDE will require Mac OS X 10.4 or later.