AbstractAs the Web3 ecosystem continues to grow and develop, cybersecurity threats and attacks are becoming increasingly sophisticated. One such threat is the Sybil attack, a deceptive method used to gain an unfair advantage in decentralized networks. This long read explores the Sybil attack's implications on address traceability, airdrops, and decentralized finance, drawing insights from Nansen, Chainalysis, and Bitfury Crystal. We will also discuss the challenges that these attacks pos...