The Conficker worm is set to activate today, but according to security experts it hasn't done any harm (yet?). The worm is attempting to update itself by contacting hosts, but those calls aren't getting through:
McAfee says its Avert Labs is seeing Conficker-infected hosts attempting to call their "master" to get instructions, but those calls are not getting through. "This could be deliberate and the infected hosts may try again later, perhaps over the weekend when people aren't watching as closely," McAfee spokesman Joris Evers says. Hear more on this podcast. And for more technical details on what the worm is doing, McAfee Avert Labs has an updated blog posting.