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English definition of “cyber warfare”

cyber warfare

noun [U]
 
 
INTERNET
the activity of using the internet to attack a country’s computers in order to damage things such as communication and transport systems or water and electricity supplies: The use of cyber warfare can destabilise financial systems, the telephone system or the energy grid. Cyber warfare has fundamentally changed national security because an attack can come from anywhere. →  See also hacktivism
(Definition of cyber warfare from the Cambridge Business English Dictionary © Cambridge University Press)
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