PGP is both an encryption program and a standard, originally created by Philip R. Zimmermann. Both it and its open-source counterpart GPG are in active development. Read this article to learn more about it, its history, digital signing, encryption and more.

VoIP is a relatively new technology and is facing a lot of challenges in competing with traditional telecommunication using TDM technology such as security. Here is a look at the top VoIP threats and how to avoid them.