An employee (or a hacker) leaking the fact, maybe even leaking details, is all it takes to get the bloodhounds called on you and now you are subject to discover

An employee (or a hacker) leaking the fact, maybe even leaking details, is all it takes to get the bloodhounds called on you and now you are subject to discovery. Sure, you can lie, but if you are doing anything large enough to get attention, you are exposing yourself to possible liability.