Security 101: E-mail Encryption with PGP and GPG

E-mail represents a significant exposure for many systems. Not only do the messages contain information, but they often have attachments containing significant chunks of corporate data, often sensitive in nature. The answer is often to employ encryption so the messages cannot be read. PGP and GPG are the main contenders, with PGP generally costing more and GPG being open source but not running on all systems. Security 101: E-mail Encryption with PGP and GPG