A wireless network security system including a system data store capable of storing predetermined data and network configuration, a wireless transmitter and a system processor. The system processor performs a network security method. An active defense request signal is typically received, typically from an intrusion detection system. The received request signal includes an indicator of an access point within the wireless computer network that is potentially compromised. In response to what is received an active defense of the wireless network is activated. Activated active defense may be at or above transmitting an interference signal, transmitting a signal to introduce CRC errors, transmitting a signal to increase the difficulty associated with breaking the network cipher (typically including in the legitimate signal packet but containing Random payloads, or transmit a channel change request to the potentially compromised access point.