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> Chapter 21 - Security Profiles > AntiVirus > Antivirus concepts > Antivirus techniques

Antivirus techniques

The first three antivirus features work in sequence to efficiently scan incoming files and offer your network optimum antivirus protection. The first two features have specific functions, the third, heuristics, protects against new, or previously unknown virus threats.

To ensure that your system is providing the most protection available, all virus definitions and signatures are updated regularly through the FortiGuard antivirus services.

The Botnet protection looks for links to malware rather than malware itself.