Two students have admitted hacking Fine Gael’s website in the weeks leading up to the 2011 general election as a “stunt” to embarrass the party.

Two students have admitted hacking Fine Gael's website – in the weeks leading up to the 2011 general election – as a “stunt” to embarrass the party.

They’ve hacked the CIA, the Sun newspaper, the Church of Scientology and a host of other large corporations, sparking a global police crackdown. But who and what are Anonymous? A radical new form of activism – or just bored teenagers? Carole Cadwalladr spoke with some of the ‘hacktivists’ and the experts who tracked them down