Conficker began spreading in October 2008, using a handful of sneaky tricks to spread. Once it infects a machine, it can spread very quickly on a local area network by taking advantage of a now-patched flaw in Microsoft Windows.
IBM sees Conficker hitting 4 percent of PCs
03.04.2009
Due to a reporting error, the story, "IBM sees Conficker hitting 4 percent of PCs," posted Thursday misstated the year the worm started spreading. It was 2008. The story has been corrected on the wire and the sixth paragraph now reads: