A system of antenna power management security may comprise a memory for storage in a standard absorption rate control register of code instructions executed to alter a transmitting antenna power level, and a processor operably connected to the memory executing code instructions of an antenna power management security system to store a randomly generated challenge number in a challenge register of the memory, determine a first response value based on the randomly generated challenge number, read a second response value determined by the processor executing code instructions of a basic input output system and stored in the memory, and if the first response value matches the second response value, allow the processor executing code instructions of the basic input output system to store a single command in the standard absorption rate control register within a preset time period, for later execution by the processor.