>> what if you want to make backups? One can design a special hardware, with a port for just comparing passwords and a port for copying. A Hacker would need p

>> what if you want to make backups? One can design a special hardware, with a port for just comparing passwords and a port for copying. A Hacker would need physical access to copy the database. >> Load balancing Could be part of the design.Say card in a box, with internal physical connection inside the box for copying.