A good antivirus program will protect against malware infections and eliminate threats that are currently in place or attacks on individual computer devices, networks, or entire IT systems. The programs scan websites and files, installed software as well as user data for known malware types and monitor day-to-day program behavior to detect potential threats and alert the user.
Most antivirus protections offer multiple scanning methods which include scheduled, on-access and quick scans. On-access scans search for malware in directories of the operating system, common file areas and other common places upon starting. Scheduled scans allow you to set up a daily, monthly or weekly schedule to run a comprehensive system scan at a specified time. The scans are usually quick and last about a minute or so and look at commonly used areas on your computer, including temporary files or the directory of your operating system.
Certain programs employ heuristic detection to look for malware by looking for similar tendencies or patterns. This is a more sophisticated method of virus detection than signature-based detection and it is able to detect malware that other programs miss. These advanced forms of antivirus detection may not work as well for small businesses, as they are often prone to false positives–identifying secure parts of files and programs as potentially harmful.
As the business world becomes increasingly interconnected hackers are targeting businesses more frequently to steal consumer data or to make a name for themselves through hacktivism (disrupting professional systems due to social or political reasons). All businesses must have antivirus protection in place to protect them from cyberattacks.