A method for detecting lost camera usage, which enables to detect if stolen or lost cameras are used against their real owners in a predetermined area comprising; - at least one camera comprising a communication interface card that enables the camera to make data communication with the outside, - at least one database wherein the identities of lost or stolen cameras are stored in a list, - at least one wireless router which directs the data packet exchange in the coverage area of a predetermined wireless network whose name is predetermined, - at least one central control computer which is connected to said wireless network, - at least one router which directs the data packet exchange between the wireless router and central control computer, the method further comprising - the central control computer broadcasting a message querying the identities of the cameras connected to said wireless network, - the router receiving the query message packet and directing it to the wireless router, - the wireless router broadcasting the query message packet wirelessly in the coverage area of the network, - the camera(s) in the network's coverage area receiving the query message, - said camera(s) receiving the query message, sending the information of their identity information to the wireless router, - the wireless router directing the identity information to the router, - the router directing the identity information to the central control computer, - the central control computer comparing the received identity information with the list in the database, - sending prohibition message to the camera(s) matching with the identity information in the list from the central control computer by means of the routers,, - camera(s) receiving the prohibition message, applying the mechanical and/or electronic prohibition procedure and transmitting the message regarding the process is successful after the procedure is completed to the central control computer over the routers,,, - when receiving the message that the process is successful, the central control computer deleting the corresponding identity information of the camera(s) from the list in the database. - at least one camera comprising a communication interface card that enables the camera to make data communication with the outside, - at least one database wherein the identities of lost or stolen cameras are stored in a list, - at least one wireless router which directs the data packet exchange in the coverage area of a predetermined wireless network whose name is predetermined, - at least one central control computer which is connected to said wireless network, - at least one router which directs the data packet exchange between the wireless router and central control computer, - the central control computer broadcasting a message querying the identities of the cameras connected to said wireless network, - the router receiving the query message packet and directing it to the wireless router, - the wireless router broadcasting the query message packet wirelessly in the coverage area of the network, - the camera(s) in the network's coverage area receiving the query message, - said camera(s) receiving the query message, sending the information of their identity information to the wireless router, - the wireless router directing the identity information to the router, - the router directing the identity information to the central control computer, - the central control computer comparing the received identity information with the list in the database, - sending prohibition message to the camera(s) matching with the identity information in the list from the central control computer by means of the routers,, - camera(s) receiving the prohibition message, applying the mechanical and/or electronic prohibition procedure and transmitting the message regarding the process is successful after the procedure is completed to the central control computer over the routers,,, - when receiving the message that the process is successful, the central control computer deleting the corresponding identity information of the camera(s) from the list in the database.