After a bitter experience that the Mac world faced due to the menace of Flashback Trojan virus, people must be wondering why virus-makers write malware. The answer is, simply for money.
Symantec has worked out that the evil-doing malware-makers behind that nasty Flashback Trojan, were raking in around $10,000 a day.
Apparently Flashback was cheating Google out of ad money on a colossal scale. It was redirecting clicks and banking the cash. With 100,000s of users unknowingly infected, all those tiny 5p clicks quickly added up, and that was just one variant of the Trojan.
With that much money on the line, one should not be surprised to see Macs becoming a target for trojans. Windows users are supposedly wiser to these kinds of things. In theory it is a lot easier, once you have actually managed to get onto a Mac, to hide-out there earning serious money.
Now that they have successfully proved Macs are vulnerable, and made a tons of money in the process, we cannot expect the Mac to escape Windows-style virus hell.