A module configured to cope with conditional access broadcasting includes an interface that is detachable from a receiver, the receiver being configured to receive digital broadcasting including conditional access broadcasting, and the interface being configured to acquire a transport stream produced based on the digital broadcasting, a descrambler configured to descramble data included in the transport stream, a loudspeaker configured to output sound, and a controller configured to detect emergency warning information included in the transport stream and control the loudspeaker to output sound related to the emergency warning information in response to the detection of the emergency warning information.