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Finding the security vulnerabilities and solving the issues in Wireless Sensor Networks (WSN) are mandatory tasks for providing secure data transmission. Attackers or intruders are rising with various types of network harming activities. Due to the open shared medium of WSN, the services can be easily broken. Intrusion Detection System (IDS) helps to keep the network secure against the attackers. At the same time, it is not sufficient against numerous real time attackers. There are plenty of attacks are injected in wireless transmissions. So, taking a deep survey and finding the needs in security perspective are very important jobs. This survey article analyses the problems and solutions given on secure routing and successful watchdog production in WSN. Collectively, this survey helps to understand IDS techniques, WSN characteristics, secure routing, key management techniques and watchdog construction …