An electronic device displays a first interface, and receives a first touch operation from a first user on the first interface, where the first touch operation triggers the electronic device to display a second interface; in response to the first touch operation, the electronic device determines whether behavior characteristic information of M touch operations matches behavior characteristic information of an authorized user in the electronic device; and the electronic device displays the second interface when the behavior characteristic information of the M touch operations matches the behavior characteristic information of the authorized user, where the M touch operations include the first touch operation, and M is a positive integer.