According to CoinMeta, as reported by Cointelegraph, a research team from Certik suggests that cryptocurrency trading platforms should set clear limits on the amount of dollars that can be held in hot wallets, pointing out that security should not be measured solely by the proportion of assets in cold wallets. This recommendation was made after the attack on Binance's hot wallet, and several trading platforms have disclosed the proportion of their assets in cold wallets to boost user confidence. Gate revealed that 88.26% of its total assets are stored in cold wallets, while Coinbase stated that over 99% of customer assets are in offline mode. The research team from Certik emphasizes that the proportion of assets stored in cold wallets can reflect the degree of online exposure of those assets, but it cannot be used alone as a measure of security. An overly rigid storage ratio may slow down withdrawal processes and concentrate risks on key management systems.