at least one non-transitory computer readable storage device and one or more processors operatively coupled to the storage device on which are stored modules of instruction code which when executed by said one or more processors implements by messages Security Proxy;

wherein said messages Security Proxy monitors in real time communication to cellular mobile devices through subscriber serving node;

wherein said Security Proxy is configured to buffer the messages and verify authenticity of the message recipient in real time, authenticating a destination of the messages;

in case the message recipient and the destination of the messages is authenticated, proceeding with forwarding the message to the destination, otherwise block the message;

wherein the recipient is authenticated in real time by checking subscriber serving node behavior by sending a test message, wherein in case of no response or incorrect response the subscriber serving node is identified as fake.