An unknown person put postings on some climate skeptic websites that advertised an FTP file on a Russian FTP server, here is the message that was placed on the Air Vent today:
"We feel that climate science is, in the current situation, too important to be kept under wraps. We hereby release a random selection of correspondence, code, and documents"
The file was large, about 61 megabytes, containing hundreds of files. It contained data, code, and emails apparently from the CRU. If proved legitimate, these bombshells could spell trouble for the AGW crowd.
Discussion and analysis of the leaked items can be found at http://wattsupwiththat.com/2009/11/19/breaking-news-story-hadley-cru-has-apparently-been-hacked-hundreds-of-files-released/#more-12937. The BBC is also reporting but with few details http://news.bbc.co.uk/2/hi/science/nature/8370282.stm.