For years, Mac users smugly told themselves and everyone else, “Macs don’t get viruses.” Indeed, that was true for years but not true these days. While still rare, a few Macintosh viruses and other malware (malevolent software) are now floating around the Internet. If you are a Mac user, you should be aware of new variants of malware that have been created specifically to target Apple computers; one is ransomware and the other is spyware.
Mac users need to make sure their machines are kept up to date with the latest software patches and be wary of messages they receive via email. Apple does a good job of neutralizing malware by issuing frequent updates that eliminate the specific weakness exploited by such malevolent software.
Details may be found in an article by Mark Ward in the BBC News web site at: http://www.bbc.com/news/technology-40261693.