NKorea vows to retaliate over US ransomware accusation

SEOUL, South Korea (AP) — North Korea said Thursday that a U.S. accusation that it was behind a major ransomware attack was a "grave political provocation" and vowed to retaliate.

Homeland security adviser Tom Bossert wrote in a Wall Street Journal op-ed published Monday that North Korea will be held accountable for May's WannaCry ransomware attack that infected hundreds of thousands of computers worldwide and crippled parts of Britain's National Health Service.

In remarks carried by state media, the North's Foreign Ministry repeated it had nothing to do with the attack. It said it will never tolerate such "reckless" U.S. claims but didn't say how it would respond.