TOKYO -- The ransomware attack that briefly shut down a major U.S. pipeline underscores the reality that what happens in cyberspace no longer necessarily stays there.
International law seen supporting armed response to electronic use of force

The Estonia-based NATO Cooperative Cyber Defense Centre of Excellence organizes the international Locked Shields cyberdefense exercise. © Reuters
TOKYO -- The ransomware attack that briefly shut down a major U.S. pipeline underscores the reality that what happens in cyberspace no longer necessarily stays there.