What is malware (malicious software)? - Definition from Whatis.com

Definition

malware (malicious software)

Malware (for "malicious software") is any program or file that is harmful to a computer user. Thus, malware includes computer viruses, worms, Trojan horses, and also spyware, programming that gathers information about a computer user without permission.

Contributor(s): Debra Lee
This was last updated in August 2001

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