Wireless Sensor Networks (WSN) is a new development in the field of ad hoc networks. These networks are designed for the post disaster scenarios where end to end connectivity is not possible. In this scenario, sensors are placed to sense the environment and collect information. This collected information is sent to the base station for further communication. Security is a challenging issue in WSN. There are various kinds of attacks which are presented that can cause security of WSN. In this paper, challenging issues and various attacks that cause security of WSN are presented with detailed review of existing techniques. Keywords: Challenges, issues, security, attacks, black hole attack and wireless sensor network (WSN)Cite this Article Chander Diwaker, Gagandeep Gogna. Attacks in wireless Sensor Networks: Security Issues and Challenges. Journal of Network Security. 2016; 4(1):19–22p.
