Method for controlling security system and electronic device thereof

1. A portable electronic device comprising:

a display;

a communication interface configured to communicate with a wearable device using wireless short-range communication; and

a processor configured to:

establish a connection between the portable electronic device and the wearable device;

receive, via the communication interface, a security status of the connected wearable device from the connected wearable device;

limit access to at least one setting item among a plurality of setting items included in an application, in response to the security status corresponding to a lock status, the at least one setting item being predefined among the plurality of setting items and relating to a passcode; and

allow access to the at least one setting item, in response to the security status corresponding to an unlock status.

2. The portable electronic device of claim 1 , wherein the wearable device is a wrist watch having a pulse sensor positioned on a back side of a body of the wrist watch, the pulse sensor being used to determine a wearing status of the wrist watch, and

wherein the security status of the wrist watch is changed from the unlock status to the lock status in response to no wearing status information.

3. The portable electronic device of claim 1 , wherein the processor is further configured to provide, via the display, a menu for inputting password data of the portable electronic device.

4. The portable electronic device of claim 1 , wherein the processor is further configured to detect disconnection of the wireless short-range communication while access to the at least one setting item is allowed, and to limit access to the at least one setting item, in response to the detection of the disconnection of the wireless short-range communication.

5. The portable electronic device of claim 1 , wherein the processor is further configured to periodically receive the security status from the wearable device.

6. The portable electronic device of claim 1 , wherein a wearing status of the wearable device is detected by a sensor affixed to the wearable device, and the security status is determined based on the detected wearing status.

7. The portable electronic device of claim 6 , wherein the wearable device is a wrist watch, and the sensor is a pulse sensor that detects a pulse rate.

8. The portable electronic device of claim 6 , wherein, when a user wears the wearable device, the sensor is positioned adjacent to the user's wrist.

9. A method for controlling a portable electronic device, the method comprising:

establishing a connection between the portable electronic device and a wearable device;

receiving a security status of the connected wearable device from the connected wearable device;

limiting access to at least one setting item among a plurality of setting items included in an application, in response to the security status being a lock status, the at least one setting item being predefined among the plurality of setting items and relating to a passcode; and

allowing access to the at least one setting item, in response to the security status being an unlock status.

10. The method of claim 9 , further comprising:

changing from the unlock status to the lock status in response to a determination that the wearable device is not being worn,

wherein the wearable device is a wrist watch having a pulse sensor positioned on a back side of a body of the wrist watch,

wherein the pulse sensor determines a wearing status of the wrist watch, and

wherein the security status is changed from the unlock status to the lock status in response to a change in the wearing status indicating that the wrist watch is not being worn.

11. The method of claim 9 , further comprising providing a menu for inputting password data of the portable electronic device.