Institute of Research and Journals (IRAJ)
Node replication attack is one of the most dreadful security attack exist in wireless sensor networks, as a result researchers are paying attention towards developing security schemes against node capture attack. This paper provides deep insights of wireless sensor networks and security challenges. Also this paper includes review of various vulnerabilities and layer-wise classification of security attacks with counter measure for the same is also presented. Further, a review on one of the most dangerous attack i.e. node replication attack and its detection technique is also discussed.