A Detail Survey on Wireless Sensor Networks (WSNs) Security Issues

Wireless sensor networks have become a growing area of research and development due to the vast number of applications and great impact in commercial applications such as traffic surveillance, habitat monitoring and smart workplaces and many more scenarios. Since a WSN consists hundreds of small size, low cost and battery powered sensor nodes. These nodes have the event sensing capabilities, data processing capabilities. One of the main challenges wireless sensor networks face today is security. The problem of security issues are arises due to constrained nature of resources on the wireless sensor nodes the wireless nature of the sensor networks and, which means that security architectures used for traditional wireless networks are not viable. Furthermore, wireless sensor networks have an additional vulnerability because sensor nodes are often placed in a dangerous hostile or environment where they are not physically protected. In this paper we have focused some security threats and challenges faced by WSNs.