Another nasty one is MacKeeper, not to be confused with the Mac Defender malware. Norton for Mac has been known to delete critical system files on the Mac, and cause kernel panics. But not only will AV software not be of much help, but they may actually harm your computer. Viruses can mutate, and become immune to the antidote. Cures may be found for viruses, but they may only stop the virus for a year or two. This is where the computer term 'virus' gets its name, because of the analogy to viruses in the human body. Most malware, as they are constantly changing, can easily slip past any anti-virus software. The best protection you can get, however, is common sense.
Hearing about malware on the Mac may make you feel more cautious and make you think you have a need to install anti-virus (AV) software.
