A new April Fool's worm, known as conficker, could be a huge security threat to your computer and it's no joke.
Conficker runs on Windows computers, spying on all your activity. It has the potential to steal your passwords and financial information. Experts say the worm buries itself deep in your PC and on April 1st, the creator could have it "phone home" so to speak, activating it with new instructions.
The best test to see if your computer is already infected is to try and go to security web sites like Symantec and Mcafee. If you can't there's a good chance you have it.