According to online reports, blockchain analysis company Elliptic reported that so far in 2025, criminals have transferred US$21.8 billion in illegal proceeds through decentralized exchanges, cross-chain bridges and exchange services, of which approximately 12%(US$2.5 billion) comes from North Korean hackers. One-third of complex cases involve more than three blockchains, and 27% span more than five chains. Elliptic warned that as the development of AI and blockchain accelerates, the market boom period may induce more crypto scams.