HorseCookieRoadApples. If someone tampers with my servers I will instantly know and they will shortly thereafter be my mRNA volunteer test subjects.

Do all servers have debug back doors? Of course they do. Every piece of hardware has some form of JTAG debugging that can bypass all aspects of security and magic math no matter what proprietary fancy name that Stan the car sales man pushes. To access those debugging features they have to physically access my servers and that is not going to happen.