Patent ID: 7950045

Claim:
A method of communicating through a communications network in a manner to insure security for the communications network, comprising: enabling a security agent in an access terminal device configured for communicating through the communications network, wherein the security agent is configured to protect the communications network by blocking malicious traffic generated by an application program in the access terminal device from entering the communications network from the access terminal device; receiving a message relating to a request for registration of the access terminal device for network layer (Layer 3) service through the communications network, at a node of the communications network controlling the network layer (Layer 3) service through the communications network, wherein the message includes data regarding the security agent that is enabled in the access terminal device; at the node of the communications network, determining adequacy of the enabled security agent to protect the communication network against malicious traffic in response to the data regarding the enabled security agent; from the node of the communications network, granting the requested registration for network layer (Layer 3) service in response to the determined adequacy of the enabled security agent to protect the communication network against malicious traffic; responsive to the grant of the requested registration for network layer (Layer 3) service, communicating through the communications network; and during the communicating through the communications network, implementing the enabled security agent to: monitor activity of the access terminal device and identify traffic generated by the application program in the access terminal device as malicious; and prevent the application program in the access terminal device from sending the identified malicious traffic from the access terminal device into the communications network.