British police arrested two men yesterday as part of a trans-Atlantic investigation into cyber attacks committed by hacking groups Anonymous and LulzSec.
Scotland Yard said it picked up a 24-year-old and a 20-year-old from two separate UK addresses and seized a computer, Yahoo reports.
"The arrests relate to our enquiries into a series of serious computer intrusions and online denial-of-service attacks recently suffered by a number of multi-national companies, public institutions and government and law enforcement agencies in Great Britain and the United States," said detective inspector Mark Raymond from the Metropolitan Police's Central e-Crime Unit.
Police also confirmed that a further two suspects were yesterday charged in relation to denial-of-service attacks carried out by Anonymous. They'll appear in court on September 7 alongside two others previously charged with the same offence, which carries a maximum sentence of ten years in prison.
Anonymous was heavily linked to a hack attack on the PlayStation Network in April, which resulted in 77 million users' account details being compromised. Speaking yesterday, Sony CEO Howard Stringer said the PSN "is more secure and better than ever".