Abstract: To many thought provoking problems, Wireless Sensor Networks have become a feasible solution. However, the deployment of new technology without security has often proved to be immoderately dangerous. WSN have recently attracted a lot of interest to the researchers due to wide range of applications. In this paper, we identify the security threats and attacks in WSN. Security solutions are also discussed and we also provide a brief discussion on the future research direction in WSN security.

Keywords: Wireless Sensor Network, Security, Sybil, Wormhole, Sinkhole.