Law Enforcement Seeks Hackers Behind 'WannaCry' Attack

The global WannaCry "ransomware" cyber attack slowed, with no major infections reported, as global law enforcement agencies shifted their attention to finding the hackers who unleashed it. The attack infected 300,000 machines in 150 countries, said Tom Bossert, U.S. President Donald Trump's homeland security adviser. That would make it one of the fastest-spreading online extortion campaigns in history.