Security firm Sophos on Tuesday indicated that a surprisingly high level of malware has been found on Mac computers — the firm’s research revealed that one in every five Mac computers is harboring some kind of Windows malware. Of the 100,000 customers sampled through Sophos’s antivirus offerings, 20% of users were found to be carrying one or more instances of Windows malware. The firm highlighted that Windows malware on a Mac won’t cause any harm, however, unless the computer also runs a Windows partition in addition to OS X. The company’s research found that just 2.7% of Macs that installed the company’s free anti-virus software were infected by OS X malware. Nearly all of the OS X malware discovered was an iteration of the “Flashback” trojan called “Flshplyr.” Sophos said that cybercriminals may find Macs to be targets because OS X users are less likely to be running an anti-virus software, however Macs can get viruses and the right software can keep a user’s computer safe. A second pie chart follows below.

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Dan joins the BGR team as the Android Editor, covering all things relating to Google’s premiere operating system. His work has appeared on Fox News, Fox Business and Yahoo News, among other publications. When he isn’t testing the latest devices or apps, he can be found enjoying the sights and sounds of New York City.