Ever since its introduction in 1991, PGP (Pretty Good Privacy) has reigned as the preferred method for encrypting email and files. Many versions and improvements later, PGP Personal for Windows 8.0 is now a full-featured encryption suite that integrates with Windows XP and most popular email programs. This version includes features such as PGP Mail, which encrypts and digitally signs email messages, as well as the new PGP Disk feature, which allows you to set aside an encrypted area of disk space for storing your sensitive data. Although PGP can be daunting for those unfamiliar with Public Key Infrastructure (PKI) programs, it remains the de facto standard in encryption technology. Whether you choose the free version or the 50-euro (~£33) Personal edition, PGP 8.0 is a must-have for anyone who is truly serious about keeping data and email communications private.