“…The Sybil conspiracy attack in Vehicle Ad hoc Network (VANET) was first introduced in , where the attacker could pretend to be a conspiracy node, and then his identity is to send malicious messages to other nodes nearby. Liu R et al, 2014, Jan MA et al, 2018, Demirbas M et al, 2006, Wang J et al, 2008, Bhuvaneshwari G et al, 2014, Lv S et al, 2008, Faisal M et al, 2018, Yao Y et al, 2019 Time-based ToA / TDoA Huang X et al, 2012, Garg N et al, 2014, Rajesh M et al, 2012 TDMA Spider Monkey Ali Alheeti KM et al, 2018, Iwendi C et al, 2018 Time Synchronization , Dong W et al, 2015, Benzaid C et al, 2011 Range free Geetha C et al, 2015, Shi W et al, 2015, Ayaida M et al, 2019, Patil DS et al, 2017, Grover J et al, 2010, Karuppiah AB et al, 2014, Tian B et al, 2013 Network Feature/ Behavior Traffic and Mobility Han S et al, 2017, Golestani Najafabadi S et al, 2013 Enter -Exit Behavior Attack Edge Jamshidi M et al, 2018, Silawan T et al, 2016 Node relation (Graph) Subba B et al, 2018, Zhang K et al, 2014, Sicari S et al, 2017 Network/physical data Singh R et al, 2017, Sujatha V et al, 2017, Wang H et al, 2018, Gantsou D et al, 2015 Gaikwad V et al, 2017, Sinha S. et al, 2013, Saggi MK et al, 2015, Danev B et al, 2009…”