Method for controlling security system and electronic device thereof

A wearable device comprising:

• a sensor;
• a communication interface configured to communicate with a portable electronic device using wireless short-range communication;
• and
• a processor configured to:
• detect, via the sensor, a wearing status of the wearable device,
• determine a security status of the wearable device based on the wearing status, and
• transmit the security status to the portable electronic device.

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

• displaying a menu for controlling data of a wearable device;
• receiving a security status from the wearable device;
• limiting access to at least one item of the menu if the security status is a first security state;
• and
• allowing access to the at least one item of the menu if the security status is a second security state.