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Wireless sensor networks have many potential applications for both civil and military tasks. However, WSNs are susceptible to many types of attacks because they are deployed in open and unprotected environment. Selective forwarding attack is one of the easiest implement and damaged attacks in multi-hop routing protocols. In this paper, we proposed a lightweight detection algorithm based only on the neighborhood information. Our detection algorithm can detect selective forwarding attack with high accuracy and little overhead imposed on detection modules than previous works.