Analysis suggests the hacker was in east coast of America and operated over a number of days, but much remains unknownHacker in staged photograph surrounded by computers. Photograph: Corbis Figuring out who was behind the hack of the Climatic Research Unit (CRU) at the University of East Anglia requires some digital forensic skills – and an insight into the mindset of those who were trying to get at CRU's files at the time.Analysis by the Guardian and digital forensics experts suggests that an outside hacker gained access to a server at the UEA which held backups of CRU emails and...