In most of the places, the Mac computers are protected against the malware and viruses, but not all of them. This means that even Mac computers may be infected with these dangerous things.
How can we understand that mac computer is infected with a malware or virus ? This is very easy for the computer with windows operating system because antivirus programs detect all dangerous things in the computer. On the other hand, anybody do not advise me to install a Mac protecter program because most of them are malware itself.