The embodiment of the invention discloses an input detection method, a terminal and a computer readable medium. The method comprises the steps that on the condition that it is detected that a user inputs an equipment identification code to input equipment, the input equipment generates an operation record corresponding to the input operation by responding to the user's input operation; whether a risk operation exists in the input operation or not is judged; if yes, the risk operation is marked in the operation record, and the type of the risk operation is indicated; the marked operation recordis sent to a server. By judging whether risk operation behaviors such as deletion, modification, pasting and replacement exist in the input operation that the user inputs the equipment identificationcode or not, the risk operation is marked in the operation record corresponding to the input operation, the marked operation record is sent to the server, and the basis is provided for judging the authenticity of user input data through the server or risk control workers.