In recent years, Opportunistic Networks (OPPNET) are grown at very fast rate. These networks are designed for the areas in which no end-to-end connectivity is available for communication. OPPNET works on the principle of store carry and forward mechanism. Transmission of messages takes place through intermediate nodes in OPPNET. It means that OPPNET depends on intermediate nodes. If any intermediate nod behaves maliciously then data transmission may cause. This paper presents selfish node attack and impact of this attack. Next, we discussed various existing techniques that are designed to deal with selfish node. Keywords: OPPNET (Opportunistic Networks), Selfish node, Selfishness, Reputation and CreditCite this Article Vikram, Sandeep Kumar. Selfish node detection in Opportunistic Networks. Journal of Network Security. 2016; 4(3):1–4p.
