Pictures Can Give You Computer Viruses

Nope. Well, not yet. Pictures are just data files that are read by special programs. But, someday, someone may come up with a picture file format that accommodates the inclusion of computer instructions — for whatever purpose someone dreams up. Are you thinking “macro virus” right now? So am I. Anytime someone comes up with … Read more

Understanding Antivirus Software

Before I explain what antivirus software is, it’s worth reviewing the nature of software in general. Understanding software doesn’t mean you have to write computer programs or wear a hat with a propeller on top. The fact is that the word software is at the heart of viruses and the defenses against them. Knowing some … Read more

The Basics of the Computer Virus

A plethora of negative magazine articles and books have catalyzed a new kind of hypochondria among computer users: an unreasonable fear of computer viruses. This hypochondria is possible because a) computers are very complex machines which will often behave in ways which are not obvious to the average user, and b) computer viruses are still … Read more