According to Wired's blog, the Large Hadron Collider at CERN in Switzerland was hacked over the weekend.
From the article: Though the Large Hadron Collider's infiltration by hackers did not disrupt the historic project, experts warn that its computer systems are vulnerable -- though at least their exploitation won't destroy Earth."
The hackers were stopped before they could access the Collider's central computer system, but were described by the Telegraph as being "one step away" from full control of the CMS. They deleted one as-yet publicly unidentified file -- the hacker equivalent, perhaps, of counting coup.
"We're pulling your pants down because we don't want to see you running around naked looking to hide yourselves when the panic comes," wrote the intruders in a note left on the Collider's website.
Read the rest of the story: http://blog.wired.com/wiredscience/2008/09/hackers-infiltr.html