"Hackers create Mac virus and 25 Mac's crash and burn."
Or
"Hackers create PC virus and 25 Million PC's crash and burn."
Again, this has been disproven time and again. It's a canard.
The fact is there are NO viruses active for Mac OSX (I do remember the WDEF virus in 1990 or so, but that's dead). There are THOUSANDS active TODAY for Windows.
But it doesn't really matter, does it? You have to spend your time and money supporting an industry that does nothing (your virus / anti-virus industry), I don't. Whatever the reasons you think that's OK, it's still a fact.