PGP Security Hole

Key Vulnerability Hits PGP Testing at KeyLabs has verified a security vulnerability that has been discovered in Network Associates PGP (Pretty Good Privacy) encryption program. Giving rise to some "I told you sos", the vulnerability happens because of a feature added to let certain third-parties read your encrypted mail. The problem was found by German researcher Ralf Senderek, and has been circulated by CERT, and acknowledged by Network Associates. It affects PGP 5.5.x through PGP 6.5.3 for Windows 95, 98, NT, and 2000. Encryption in PGP works via a mathematical formula using a private key and a public key. The public key is known to others, and is usually made available through public sources. The problem is due to the introduction of another type of key, called an