White House Homeland Security Advisor Thomas Bossert

[Commentary] The US publicly attributes the massive “WannaCry” cyberattack to North Korea. The attack spread indiscriminately across the world in May. It encrypted and rendered useless hundreds of thousands of computers in hospitals, schools, businesses and homes. While victims received ransom demands, paying did not unlock their computers. It was cowardly, costly and careless. The attack was widespread and cost billions, and North Korea is directly responsible. We do not make this allegation lightly. It is based on evidence. We are not alone with our findings, either.