[CertiK: Recommends Crypto Exchanges Set Hard USD Holding Caps for Hot Wallets] BlockBeats reported on November 10th that the CertiK research team stated that crypto exchanges should not rely solely on the proportion of assets held in cold wallets to measure security, but should also set clear USD holding caps for hot wallets. This recommendation comes against the backdrop of several exchanges disclosing their cold wallet reserve ratios to bolster user confidence following the Binance hot wallet attack. Gate disclosed that 88.26% of its total assets are stored in cold wallets, while Coinbase stated that over 99% of its customer assets are offline. The CertiK research team pointed out that the cold storage ratio can reflect the degree of online exposure of assets, but cannot be used as the sole basis for security scoring. Increasing the proportion of cold wallets generally helps reduce online risk, but when the ratio is already high, further increases may have limited benefits; an overly rigid storage ratio may also slow down withdrawals, force platforms to hastily transfer assets, and concentrate risk on the key management system. CertiK recommends that trading platforms set separate limits for hot wallets based on different assets and blockchains, while considering three criteria: a certain percentage of customer debt, estimated withdrawal needs, and an absolute loss limit based on the platform's financial resources and asset recovery capabilities. The organization believes that while ensuring operational liquidity, potential losses should be limited through hard dollar limits and circuit breaker mechanisms.