A module dual mode device architecture and method of use is disclosed. The system architecture provides a distributed design of an IEEE 802.11i compliant supplicant module that provides security to data/voice packets sent over the wireless local area network ("WLAN") radio interface from a dual mode device to an access point. The dual mode device establishes a connection with the access point and if the access point is security enabled, one or more session keys are generated. The session keys are used to provide security for communications over the radio interface between the dual mode device and the access point.