'Four horsemen of cyber' recount building US Cyber Command
Briefly

The laptop was attached to the Department of Defense's Central Command network and the malware - which had been planted by suspected Russian cyber spies - soon infected other DoD systems, both classified and unclassified.
US Cyber Command was established as a sub-unified command a year later, and in 2018 it became an independent unified command as the offensive arm of the United States' digital military.
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