The core reason you don't need an antivirus on Linux is that very little Linux malware exists in the wild. Malware for Windows is extremely common. ... Whatever the reason, Linux malware isn't all over the Internet like Windows malware is. Using an antivirus is completely unnecessary for desktop Linux users.

Why Linux has no virus?

There has not been a single widespread Linux virus or malware infection of the type that is common on Microsoft Windows; this is attributable generally to the malware's lack of root access and fast updates to most Linux vulnerabilities.

Does Linux have free antivirus?

ClamAV is a popular free Linux antivirus tool. ClamAV is a command-line tool. That means you run its antivirus scans and other tools directly from the Terminal. However, there is a free GUI, ClamTK, that you can install to make using ClamAV that bit easier.