


These are all signs that you might have a virus on your Mac. Another sign is the sudden appearance of annoying pop-up windows or extra toolbars and applications you don’t remember installing.

If your Mac has suddenly become very slow and laggy, started regularly crashing or showing error messages, and the sound of your fans whirring keeps you company, you may be suspicious that you have picked up some Mac malware. Get Deal How to tell if your Mac has a virus
