Date Added: Feb 2012
Wireless Sensor Networks (WSNs) are a new technology foreseen to be used increasingly in the near future due to their data acquisition and data processing abilities. Security for WSNs is an area that needs to be considered in order to protect the functionality of these networks, the data they convey and the location of their members. The security models & protocols used in wired and other networks are not suited to WSNs because of their severe resource constrictions. In this paper, the authors describe various threats to WSN and then examine existing approaches to identify these threats. Finally, they propose an intrusion detection mechanism based on these existing approaches to identifying threats.