The U.S. government has belatedly announced that hackers tied to the government of North Korea were behind the WannaCry outbreak that began in May. The ransomware infected more than 200,000 endpoints across 150 countries. North Korea, meanwhile, continues to deny ever having launched a cyberattack. The attack was widespread and cost billions, and North Korea is directly responsible, a White House official writes. Security experts say the tools used in the attack have been previously used by the Lazarus Group.”]