Title: A Survey of Active Attacks on Wireless Sensor Networks and their Countermeasures,
Abstract: Lately, Wireless Sensor Networks (WSNs) have become an emerging technology
and can be utilized in some crucial circumstances like battlegrounds,
commercial applications, habitat observing, buildings, smart homes, traffic
surveillance and other different places. One of the foremost difficulties that
WSN faces nowadays is protection from serious attacks. While organizing the
sensor nodes in an abandoned environment makes network systems helpless against
an assortment of strong assaults, intrinsic memory and power restrictions of
sensor nodes make the traditional security arrangements impractical. The
sensing knowledge combined with the wireless communication and processing power
makes it lucrative for being abused. The wireless sensor network technology
also obtains a big variety of security intimidations. This paper describes four
basic security threats and many active attacks on WSN with their possible
countermeasures proposed by different research scholars.