Denmark raised its cyberattack threat level from medium to high, the second-highest of five levels, in response to these risks. The state is tightening requirements for 2,500 water supply and 100 wastewater companies and ordering energy firms to update emergency plans. Meanwhile, NATO Supreme Allied Commander Europe Gen. Alexus Grynkewich said a limited Russian attack on alliance territory is unlikely but possible, though he maintains the alliance can handle the threat.
