Antivirus protection is software that detects and deflects malware that can penetrate a enterprise’s digital systems in order to steal, misuse or destroy data. It can be used on many different devices including laptops, desktops and mobile devices, such as smartphones and tablets as well as connected home gadgets such a smart TVs and printers.

Modern antivirus software typically employs multiple detection methods to stop the spread of a single infection. Signature-based detection is a common method. This involves analyzing files for matches and maintaining databases with distinct code fragments, also known as malware signatures. However, if attackers alter existing malicious code to block detection by the signatures, it is considered polymorphic, and requires more advanced detection techniques.

Heuristic-based detection is an sophisticated method. It tries to detect malware by recognizing patterns that are specific to malware, such as editing and deleting large quantities of data, altering the settings of other programs, or remotely connecting to computers. The use of algorithms to detect malware can lead to security alert fatigue and must be carefully crafted to be sure that false positives are not missed.

Find a reliable antivirus program that is able to deal with polymorphic malware, ransomware memory attacks, and other advanced threats. It should also be easy to install on a wide range of devices, including Macs and PCs, as well as work with different operating systems. It should not consume too many system resources because this can cause the device to slow down or crash.