Every retail IT leader knows that a mix of anticipation, cautious relief, and low-grade paranoia the week before the holiday freeze. Change requests stack up. Teams push last-minute updates to servers, registers, and store systems. And somewhere across hundreds or thousands of locations, one system has drifted slightly out of compliance. Nobody notices until peak traffic arrives. Then a lane goes down, a register stops processing transactions, checkout slows, and revenue starts walking out the door.