Everybody knows, that today there is a need to protect their PC or device against virus and malware. For that purpose you can use antivirus software, that scans, and monitors your device, so that malware is detected and removed. This is done by the use of black- and whitelisting technology, and smarter detection mechanisms like “sandboxing” and behavior monitoring.
In professional environments, local antivirus software are often combined with an antivirus gateway that protecst web traffic.