Internet of Things (IoT) applications have been filling altogether as of late, be that as it may, the security issue has not
been all around read up in the writing for the IoT environment. The sinkhole assault is one of serious disastrous assaults for IoT
as it is not difficult to send off the assault and hard to shield it. In this paper, a Probe Route based Defence Sinkhole Attack
(PRDSA) conspires is proposed to oppose Sinkhole assault and assurance security for IoT, which is the primary work that can
recognize, sidestep and find the sinkhole simultaneously.