The ever-finer line between cyberwar and shooting wars

International law seen supporting armed response to electronic use of force

20210514N Locked Shields NATO

The Estonia-based NATO Cooperative Cyber Defense Centre of Excellence organizes the international Locked Shields cyberdefense exercise. © Reuters

TETSURO KOSAKA, Nikkei senior staff writer

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.

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