CY22392 will always have its originally programmed configuration and will always default to it upon power up. It is not In System Programmable and therefore, there is nothing that is susceptible of altering its programmed data content. Data security is really not an issue with this device. The data retention is guaranteed for 10 years. Unless you unsolder the device and put it in a programmer to reprogram it again, it will not be altered on the board.