The BackDoor.Flashback.39 trojan has struck over a half million Macs this week (along with 4 million compromised webpages), ending a safe era of relatively virus free operation. Purists say that it isn’t Apple’s fault though, because the flaw is in JAVA, and not OSX. Well, sure. But Macs use Java – and a flawed version at that. Oracle fixed this exploit in Java in February, but Apple only plugged the hole this past Wednesday. So if you haven’t run your update, YOU SHOULD. Click on the Apple icon, select “software update,” and run it to keep you safe. And here is a How To by F-Secure to clean it off, if you’ve been bit. And here’s an article on Mashable on running an AppleScript to clean it off. But BE CAREFUL running scripts you find on the Internet!