550,000 Macs infected with Trojan

For those that think Apple is invulnerable, think again.  550,000 Macs infected.  Customers with Macs need to make sure they have the latest Apple update.   http://tech.fortune.cnn.com/2012/04/05/apple-closes-a-trojan-loophole-after-550000-macs-are-infected/