Is DeFi legal in the US?

As a concerned investor, I am curious to know the legality of DeFi, or Decentralized Finance, in the United States. Given the rapid rise and innovation within this space, it's essential to ensure that I'm compliant with all regulations when engaging in such activities. So, could you clarify whether DeFi is legal in the US, and if there are any specific regulations or laws that investors should be aware of? Additionally, how does the legal landscape surrounding DeFi compare to traditional finance, and what potential risks or consequences could arise from operating outside of the law?