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.