By Jordan Robertson and Laurence Arnold
Russia, Iran, China and the U.S. are among the world’s leading practitioners of cyberwarfare -- state-on-state hacking to gain strategic or military advantage by disrupting or destroying data or physical infrastructure. Unlike combat with bullets and bombs, cyberwarfare is waged almost entirely with stealth and subterfuge, so it’s hard to know when and where it’s occurring, or whether full-scale cyberwar is on the horizon.
1. What are the hallmarks of cyberwarfare?
A cyberattack that disables essential services, such as telecommunications or electricity, might raise suspicions that a state or its proxies was behind it. So might the sheer scale of an attack, even if the direct target is private industry. Even disinformation campaigns, such as Russia’s targeting the 2016 U.S.
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