Malware

Malware is short of Malicious software.

Malware is a catch-all term for ´programs that do bad or unwanted things´. Generally, viruses, worms and Trojans will all be classed as malware, but several other types of programs may also be included under the term. One example of a good use for the term is where the best classification of a program as a worm or a virus may be unclear, you could still refer to it as ´a piece of malware´.