A server is provided. The server according to an embodiment includes a memory, a communicator, and a processor configured to transmit an application check module for identifying integrity of an application stored in an electronic apparatus to the electronic apparatus through the communicator, and, based on identification information corresponding to the application being received from the electronic apparatus, identify integrity of the application based on the received identification information, wherein the processor is further configured to identify integrity of the application based on whether the received identification information is signed by a signature key included in the application check module, and whether the received identification information matches identification information that is pre-stored in the memory.