like banks
companies only put this sort of security theatre in place after something nasty has happened
I wonder if the cleaners have the same level of security - of like other high-sec places, do they provide limited sets of two factor auth and teh cleaning company pass out access details to the rolling staff.
bragging about your security is prolly the best way to ensure some journo gets a job as a cleaner and has pics of one or more of your DC's before the week is out.