... PGP (Pretty Good Privacy) is a powerful encryption tool for use with e-mail programs, as well as for encrypting files locally. Using PGP, you can ensure that no unintended recipient reads your e-mail messages. Users create two different keys--a private and a public key--to ensure that email is always from a valid sender, and that the recipient is the valid recipient. Interoperable with PGP 7.x and older, and with GnuPG and other OpenPGP-compliant software. Building on top of the solid PGP technology base, PGPFreeware 8.0 for Mac OS X features a completely new Cocoa-based user interface to take maximum advantage of More...
Version 8.1: Release notes were unavailable when this listing was updated.
Mac OS X 10.2.1 or later
*Previously available here