Virus, it is well not for Mac? Antivirus need well only if you have a PC? The answer to the first of these common questions is a very questionable Well, while the second is more complicated.
Mac OS has never been hit by what is technically called viruses, that is, a malware on their hands can spread itself further by infecting other computers. However, what is available and a number of times has hit Mac users is trojans, adware, exploit kits and nowadays even ransomware. In other words: "Virus" or not, your Mac can be affected by malware.
Read also: How to become with MacKeeper, popups and spam software on the Mac
Two kinds of antivirus
There are basically two types of antivirus software. The first is a program that can scan your computer, a folder or individual files for known malware. The other is software that installs itself deeply in the system and keeps continuous track of everything running on your computer.
The foregoing takes no system resources other than when you run it, and can on Mac OS suffice very well together with other Security Council to have a backup strategy to keep systems and applications up to date, and do not click on dodgy links you do not know where they come from. An antivirus program can be a safe insurance, but we come a long way with, for example, these simpler programs:
Malwarebytes Anti-Malware for Mac is one of the most reliable programs in this category. Another option is the open-source software ClamXav.
The latter are the classic antivirus programs whose performance impacts your Windows-using friends may complained before about years. Now the impact is not as great, but there are large differences between different developers.
Our British colleagues recently tested eight antivirus for Mac, based on both how well they protect and how much they affect the performance. On the next page you will find the entire list, from best to worst.