The word 'virus' gets tossed around a lot. Here's what actually counts, what to watch for, and how to stay two clicks ahead ...

A computer virus that rewrites the executable file it targets rather than attaching itself to the file and running along with it. See virus. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...

A computer virus in the DOS/Windows environment that takes advantage of the fact that .COM and .EXE are two valid executable extensions for program files, and .COM takes precedence. For example, if ...