This chapter examines the escalating threat of scams, fraud, and illicit financial activities enabled by financial technology (FinTech). It details how criminals exploit digital innovations—such as cryptocurrencies, decentralized finance (DeFi), and blockchain—to conduct sophisticated operations including Ponzi schemes, fake initial coin offerings (ICOs), phishing, and pump-and-dump schemes. The analysis highlights common red flags, such as unrealistic returns, lack of transparency, and pressure tactics, while underscoring the critical role of regulatory frameworks, anti-money laundering (AML) measures, and international cooperation in combating these crimes. The chapter concludes by emphasizing the shared responsibility of regulators, FinTech companies, and individuals to foster awareness, adopt protective technologies, and pursue legal recourse to safeguard the integrity of the digital financial ecosystem.