Is smurfing illegal?

Hello there, I'm curious about the legality of smurfing in the realm of finance and cryptocurrency. Could you please explain if smurfing is considered illegal and what are the potential consequences associated with engaging in such activities? Additionally, could you provide some insights into how smurfing might be used in the context of cryptocurrency and finance, and what measures are being taken to prevent or combat it? I'm looking forward to hearing your expert opinion on this matter.