A method for operating an apparatus according to various embodiments may comprise the operations of: detecting whether a first signal transmitted from a control device to a storage device includes a designated address; and transmitting a second signal to the control device if the first signal includes the designated address, wherein the first signal may be a signal for transmitting, by the control device, a request for data to the storage device, and the second signal may be a signal for detecting whether uncommon data is included in a signal generated from the first signal.