Portable terminal and method of controlling locking of portable terminal

A portable terminal capable of communicating with a wearable terminal, the wearable terminal being capable of transmitting data showing movement of the wearable terminal to the portable terminal, the portable terminal comprising:

• a communicator configured to communicate with the wearable terminal;
• at least one processor configured to set and cancel locking;
• and
• a touch panel configured to detect proximity or contact of an object,
• the communicator configured to receive the data showing movement of the wearable terminal from the wearable terminal, and
• when the communicator receives the data showing movement of the wearable terminal while locking has been set, the at least one processor being configured to unlock the portable terminal when a similarity between a transition of touch positions on the touch panel and a transition of positions stored in a memory is equal to or greater than a first prescribed value, and a similarity between a transition of positions of the wearable terminal and the transition of positions stored in a memory is equal to or greater than a second prescribed value, wherein the transition of touch positions on the touch panel occur simultaneously with the transition of positions of the wearable terminal, and wherein the transition of positions stored in the memory are set in advance by a user of the wearable terminal, wherein
• the at least one processor is further configured to control unlocking under a first unlocking scheme low in security level based on the received data showing movement of the wearable terminal and the data representing the position on the touch panel where proximity or contact has been detected when the communicator receives the data showing movement of the wearable terminal while locking has been set, and
• the at least one processor is further configured to control unlocking under a second unlocking scheme high in security level based on the data representing the position on the touch panel where proximity or contact has been detected when the communicator does not receive the data showing movement of the wearable terminal while locking has been set.