Faced with financial market turmoil such as the "Lehman moment", cryptocurrency exchanges and investors need to respond quickly and carefully. Exchanges should enhance transparency, publish proof of reserves, strengthen risk management, prepare sufficient liquidity to cope with possible liquidity crises, and strengthen technical support to prevent security incidents. At the same time, communication with regulators is also crucial to jointly maintain market stability. Investors need to remain calm and rational, avoid blindly following the trend or panic selling, comprehensively assess risks and returns, and implement diversified investment strategies to reduce risks. Investors should continue to pay attention to market dynamics and trends, improve personal investment decision-making capabilities, and strictly protect the safety of personal assets. These are the principles that investors should adhere to during turbulent times. Through the joint efforts and adaptation of both parties, we can overcome difficulties together and promote the healthy development of the cryptocurrency market.