An information processing device capable of controlling radio wave transmission is disclosed. The information processing device includes an acceleration detection unit and a flag setting unit. The acceleration detection unit detects an acceleration applied to the information processing device. In response to the magnitude of the detected acceleration and the magnitude of the tilt of an airplane determined from the detected acceleration being larger than a predetermined value, the flag setting unit sets a stopping flag. Then, the flag setting unit stops any radio wave transmission from the information processing device.