Are Antivirus And Firewall Software Necessary On A System Running Linux?

In general, no special antivirus or firewall software should be necessary on a system running Linux. Recent versions of Linux come with a built-in firewall whose default settings cause it to automatically reject any attempted incoming connections. Linux viruses do exist but, because day-to-day operations on a Linux system are normally carried out on a user account with limited privileges, the scope for a virus to do any real harm is extremely limited. even if it had somehow managed to infect the system in the first place. In exotic circumstances, a virus could do harm, and, for those who want to be extra cautious, Linux antivirus software does exist, but the consensus among experts is that viruses are not something the ordinary Linux user need spend time worrying about.
The authors of malicious code - or malware - tend to design it in such a way as to attack the most popular systems in the marketplace, which, in practice, means Windows ~ so dedicated Linux users can normally rest easy, and take a relaxed view of the matter.

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