LONDON (Reuters) – In turning one of its best-known hackers into an informant and breaking open the highest profile elements of the "Anonymous" movement, authorities have dealt a serious blow to a group they found a growing irritant. But as the broader "Anonymous" label – complete with its iconic Guy Fawkes mask imagery – is used by ever more disparate causes worldwide, it may be all but …

SAN FRANCISCO/NEW YORK (Reuters) – One of the people accused by U.S. authorities of being at the core of Lulz Security, perhaps the most feared hacking group on the planet, led a nonprofit group in Galway, Ireland, dedicated to making websites more secure

An Internet outlaw's decision to go to work for the FBI poured light on a secretive world where young computer experts caused havoc and where authorities say a Chicago man and others celebrated their successes as they stole hundreds of thousands of dollars with stolen credit card numbers.