I've been hearing a lot about a worm called Conficker C, which is very undetectable and hard to get off our your computer. So far, an estimated 5-10 million computers have already been infected. However, the author of this malicious program plans to unleash it this April Fool's Day. So far Microsoft and other Companies are doing everything they can to stop this. Microsoft is even offering a $250,000 reward for information on the criminals behind this. Read More: No joke in April Fool's Day computer worm Conficker.C primed for April Fool's activation Conficker