[CertiK Research Team: Exchanges Should Set USD Limits for Hot Wallets] According to a report by Cointelegraph on November 10th, the CertiK research team recommends that cryptocurrency exchanges set clear USD limits on assets held in hot wallets, rather than relying solely on cold storage ratios to measure security. CertiK states that while cold storage ratios can measure online risk exposure, they cannot be used as a sole security score. Overly rigid storage ratios may also slow down withdrawals, force exchanges to hastily transfer funds, and concentrate risk on key management systems. The team recommends that exchanges set separate limits for hot wallets by asset and blockchain, employing the strictest limit among three factors: customer debt ratio, estimated withdrawal demand, and an absolute loss limit determined based on their own financial resources and recovery capabilities, and incorporating circuit breakers to control potential losses.