That’s why most security pros are so insistent that you be very careful about opening email attachments, and why most email clients and webmail services include virus scanning features by default.

What does computer security actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

The first step in improving the security and privacy of information contained in federal computer systems. Signed January 8, 1988 by President Reagan, the Act: Establishes a central authority for ...