Networked computing is a double-edged sword. Connectivity makes transparent sharing of data through e-mail, Web sites, and ftp archives possible, but it also invites unwanted access to your data.

A federal judge has ordered a criminal defendant to decrypt his hard drive by typing in his PGP passphrase so prosecutors can view the unencrypted files, a ruling that raises serious concerns about ...

PGP is based on the public-key encryption method, which uses two keys: One is a public key that the user disseminates to anyone from whom he wants to receive a message; the other is a private key used ...