Report to the local network security supervision department in time, or report to the network security supervision and reporting website of the Ministry of Public Security, or report to the local police station.

You can report the case to the place where the crime occurred, the place where the fraud was committed, the place where the fraud result occurred, and the suspect's residence, that is, you can choose to report the case at the residence or the suspect's residence. After the police in both places receive the report, either party will accept it. The best evidence to keep before reporting: Criminals in online fraud cases usually contact the victims indirectly through short messages, communication software, e-mail and other media. First of all, the victim should keep all the evidence and transaction records, preferably bank transaction records, online chat records and contact information with the other party. If you have the conditions, you can find the address of someone who knows computers around you, so that the alarm will be more secure. The facts of the case should be truthfully reflected to the public security organ: the public security organ should mainly rely on the victim's statement and the data information left by the criminal on the computer network, analyze and judge the relevant situation of the criminal by using professional technologies and tools, track the location and related data of the computer terminal used in the crime, determine the direction and scope of investigation, and carry out the investigation. Some victims feel remorse and shame because of online fraud, and even if they report the case, they rarely report it or conceal the facts of the case, which will increase the difficulty for public security organs to solve the case. When reporting a case, you can contact other victims to report the case to the police station or feedback the relevant information to the police station to reach the standard of criminal filing.