International Journal of Computer Applications
Sensor networks are currently used in wide spread deployment, so security issues are also a large concern in sensor networks, or sensor node networks. Gray hole attack is very much deleterious attack against the sensor node networks and makes the whole networks malfunctioning, and also affects the whole sensor networks communication. In this paper, the authors have described different defense intrigue according to their knowledge and also as per different research papers studied. As per their knowledge, they have described drawbacks of gray hole attack, or selective forwarding attack, thus providing better way to understand the gray hole attack in better way and the proposed solution.