US says Facebook, Microsoft disabled North Korean cyber threats
The White House says that the tech giants thwarted a number of North Korean cyber threats last week.
Symantec suspects North Korea group behind WannaCry
It was "highly likely" a hacking group affiliated with North Korea was behind the WannaCry cyber attack, says the cyber security firm.
WannaCry oddities puzzle cyber security researchers
Researchers battle to understand how the ransomware gained initial foothold and how it spread so fast.