A relatively new cross-platform Trojan is making its way around the Internet, causing problems for Windows, Macintosh, and Linux systems. The Trojan is based on Java code, which is cross-platform by design, and is likely just the beginning of this type of threat for systems around the world. This particular threat, called Koobface, is not a significant risk to systems because of problems within the Trojan code and a relatively small spread reported thus far (although the threat is being spread via Facebook and Twitter). More detail about the Koobface Trojan, specifically focused on how it impact Macintosh systems, can be found in a post at the Mac Security blog hosted by Intego (http://blog.intego.com/2010/10/29/more-information-about-the-koobface-trojan-horse-for-mac/). The Sophos Security blog also contains information about the Trojan, including some screenshots showing how the Trojan attempts to work, so you can know what to look for if you think you might encounter this attack (http://nakedsecurity.sophos.com/2010/10/28/cross-platform-worm-targets-facebook-users/).

As always, be careful what you click on out there on the Internet!