One in five Macs are carrying malware, designed for Windows machines.
That's a key finding of a new study of 100,000 Macs, which also discovered 2.7 percent of Macs had malware designed for Apple's OS X platform installed.
This study via security firm Sophos was based on computers running its free anti-virus software.
Graham Cluley, Sophos' senior technology consultant revealed in a statement that
"some Mac users may be relieved that they are seven times more likely to have Windows viruses, spyware and Trojans" than Mac ones, but
"Mac users need a wake-up call about the growing malware problem."
Windows malware on a Mac cannot do any harm on that platform, but it can cause damage if the user runs Windows as a secondary operating system, or alternatively if the infected files are shared with a Windows machine. The top Mac OS X-based malware found by Sophos in a seven-day snapshot of the surveyed Macs were, in order of occurrence...