Experts warn that the country's hacking skills have become increasingly sophisticated and dangerous in recent years.
President Donald Trump says North Korea has started returning the remains of US soldiers missing during the Korean War.
North Korean media showed President Donald Trump exchanging salutes with a North Korean general.
The nominee to be the U.S. ambassador to South Korea, said that North Korea still poses a nuclear threat to the U.S.
Should the Leader of the Free World ever salute a foreign military figure?
The freeze on exercises was not included in the joint declaration by Trump and Kim Jong Un after the summit.
Defense Secretary Jim Mattis was an exception, saying he was consulted on the halt to military exercises with South Korea.
One big outcome of the Singapore summit was commitment to accountability for the missing from the Korean War.
Trump announced that he will be freezing U.S. military "war games" with its ally South Korea while negotiations continue.
Veterans called for the Singapore summit to address the issue of U.S. troops missing from the Korean War.