Norton AntiVirus

Norton AntiVirus is a proprietary softwareanti-virus and anti-malware product founded by Peter Norton, developed and distributed by Symantec (now Gen Digital) since 1990 as part of its Norton family of computer security products. It uses signatures and heuristics to identify viruses. Other features included in it are e-mail spam filtering and phishing protection.

Symantec distributes the product as a download, a box copy, and as OEM software. Norton AntiVirus held a 13% US retail market share for security suites as of 2025. When combined with the Gen Digital family, the firm held a 27% market share.

Norton AntiVirus runs on Microsoft Windows, Linux, and macOS, with the related product Norton Mobile Security running on Android and iOS.