As recently as a year ago adware was just about nonexistent on the Macintosh. Recently there has been an explosion of adware for the Mac. (I've had to help someone with an adware problem just about every day this past week!)
Unfortunately, most (all?) of the anti-virus utility developers don't consider adware to be "malware". That is, they don't consider adware to be doing anything malicious. Technically, adware doesn't harm you or your Mac in any way. So, their products don't look for or handle adware.
And Apple has yet to do anything about adware. OS X's built-in anti-virus system, X-Protect, doesn't block adware at all.
Fortunately, for now, if you do find your Mac infected with adware (which will be obvious, because you will find pop-up ads coming up all the time when you visit certain Web sites in your browser), you can clean your Mac of them quickly, easily, and for free, using:
AdwareMedic (free)
http://www.adwaremedic.com/index.php
I just worry about what will happen when the flood of adware becomes too much for the small company that developed AdwareMedic to keep up with.
I recommend that everyone contact Apple and request that they update X-Protect to look for and block adware:
https://www.apple.com/feedback/macosx.html
Unfortunately, most (all?) of the anti-virus utility developers don't consider adware to be "malware". That is, they don't consider adware to be doing anything malicious. Technically, adware doesn't harm you or your Mac in any way. So, their products don't look for or handle adware.
And Apple has yet to do anything about adware. OS X's built-in anti-virus system, X-Protect, doesn't block adware at all.
Fortunately, for now, if you do find your Mac infected with adware (which will be obvious, because you will find pop-up ads coming up all the time when you visit certain Web sites in your browser), you can clean your Mac of them quickly, easily, and for free, using:
AdwareMedic (free)
http://www.adwaremedic.com/index.php
I just worry about what will happen when the flood of adware becomes too much for the small company that developed AdwareMedic to keep up with.
I recommend that everyone contact Apple and request that they update X-Protect to look for and block adware:
https://www.apple.com/feedback/macosx.html