Mac malware infestation decreased 38 percent
On Macs the report ( PDF file), according to a total of 75 million malware infections in the past year. Compared to 2019 with almost 121 million discoveries, this is a decrease of 38 percent. On Windows computers, the numbers fell from a good 125 million in 2019 to around 111 million, which is twelve percent less. However, there are considerable differences in the use of the computers in both operating systems. For business computers, Malwarebytes for macOS saw malware detections increase by 31 percent, while those for personal devices decreased by 40 percent. In contrast, commercially used Windows computers were 24 percent less infected with malware.
Trojans are extremely rare on Macs
Actual malware such as (encryption) Trojans or cryptocurrency miners only account for a negligibly small proportion of all malware discoveries on Macs. According to the report, only 1.5 percent fall into this category. However, that is a significant increase of a good 60 percent. The majority of the malware detected are adware and so-called unwanted software (Potentially Unwanted Programs, PUP). Malwarebytes includes apps like MacKeeper or MacBooster, which are responsible for more than 76 percent of all discoveries. The remainder of around 22 percent is accounted for by programs that annoy the user with advertising. There is a different distribution on Windows computers, where Trojans, worms and spyware are found considerably more frequently in percentage terms, and on computers used for business they are even at the top.