Knowledge
These are only these that they know of...
Nation-state snoops broke into Ribbon Communications – an outfit that provides software and networking gear to Verizon, CenturyLink, and the US Defense Department – last December, remained hidden for about nine months, and stole files belonging to three customers, according to the US telecommunications firm. "Ribbon prides …
The bad guys were inside Equifax for an unknown time.....maybe years....
How long were the bad guys inside Jaguar Land Rover before the crash?
....or Solar Winds?
Bruce Schneier has coined a phrase "security theatre"........very perceptive.....and from someone who knows!