<P> In December 2017 , the United States , United Kingdom and Australia formally asserted that North Korea was behind the attack . </P>
<P> In December 2017 , the United States , United Kingdom and Australia formally asserted that North Korea was behind the attack . </P>
who has the us blamed for the creation of the global wannacry ransomeware virus
who has the us blamed for the creation of the global wannacry ransomeware virus
North Korea
North Korea