| CPC H04W 12/069 (2021.01) [H04W 4/80 (2018.02)] | 20 Claims |

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1. An electronic device comprising:
a communication interface;
memory for storing instructions and authentication information shared with an external electronic device; and
a processor,
wherein the instructions, when executed by the processor, cause the electronic device to:
identify a loss of the external electronic device based on a failure of a first communication connection to the external electronic device for a first specified time period;
obtain information related to the loss of the external electronic device, and generate a remote lock request message requesting locking of the external electronic device, the remote lock request message including the information related to the loss of the external electronic device and the authentication information shared with the external electronic device;
transmit the remote lock request message to an external server through the communication interface;
receive, from the external server, a message indicating that transmission of the remote lock request message from the external server to at least one remote electronic device is successful or failed; and
based on a second communication connection with the external electronic device being established after the transmitting the remote lock request message, transmit, to the external server through the communication interface, information indicating that the external electronic device is unlocked, and
wherein the information related to the loss of the external electronic device comprises a time and location of a most recently terminated Bluetooth pairing between the electronic device and the external electronic device, and a determined type of movement of a user of the electronic device from among vehicle transpiration and walking collected during a time period starting before an estimated time point of the loss of the external electronic device and ending after the estimated time point of the loss of the external electronic device.
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