Method and apparatus for preventing media proxy from hacker attack

The invention discloses one method and device to prevent media agent by hacker in network information safety field, which comprises the following: media agent device receives call signals to generate and record identification codes by random to label media dialogue list and transferring certificate codes into call signals; receive end receives signals and analyzing the signals and sending the media message; media agent device receives media message and updating media dialogue list according to the certificate codes and media dialogue list label status. The invention provides one device to avoid media agent by attack hacker.