Following a tweet on LinkedIn from Laurent VERMOT-GAUCHY :
#news Apple software more vulnerable than Microsoft, security expert says http://goo.gl/fb/DpejF
The LA Times article he refers to, indicates that a security expert raises doubts about Apple's claims that their software is more secure than Microsoft's:
In Apple's famous "I'm a Mac" TV commercials, the Cupertino company frequently implies that its computer software is more secure than Microsoft's operating systems. But a renowned security expert says the truth may be the opposite.
Which is funny unless you're called Apple and/or work on a Mac I guess...