⌨️ap computer science principles review

Virus

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

In computing, a virus is a type of malicious software (malware) that replicates itself by inserting copies into other programs or files. Viruses can cause damage to computer systems, steal personal information, or disrupt normal operations.