stc15w408s is to use stc special burning software STC-ISP to burn the program, that is, can only burn the program, but can not read the program. There is also no third-party software to read the program. Moreover, the STC official statement, the current STC15 series of microcontrollers can not be decrypted. Therefore, it is impossible to read the burned program. That is, internal procedures are impossible to read.