Between News of the World and LulzSec, hackers are keeping Scotland Yard very busy. The Metropolitan Police announced they had arrested a leader of LulzSec, the group that hacked PayPal and several other organizations it deemed unfriendly to WikiLeaks and then leaked tens of thousands of stolen passwords. Last week, LulzSec (whose logo is pictured at left) hacked News Corp.'s Sun tabloid and posted a story about Rupert Murdoch's death. The 19-year-old hacker, who goes by the name Topiary, is believed to be the spokesperson for the group. Last week he boasted that he had never felt safer.