Mac users dont panic. Follow the steps provided here to check if you have the trojan and remove it.

Code: 
http://www.f-secure.com/v-descs/trojan-downloader_osx_flashback_i.shtml

And for all you stupid fags who posted "mac got owned" and shit, you should know that every OS in this world has vulns, its just difficult to infect macs thats all. And unlike you windows users who think mac is shit, it only took apple a few hours to release 2 updates which patched the vuln.