CertiK Recommends Crypto Trading Platforms Set Hard USD Holding Limits for Hot Wallets

CertiK’s research team says crypto trading platforms should not rely solely on cold wallet asset ratios to measure security, but also set clear dollar-based position caps for hot wallets. The recommendation comes amid a wave of crypto platforms disclosing cold wallet reserve ratios to boost user confidence, following Binance’s hot wallet hack. Gate.io disclosed that 88.26% of its total assets are held in cold wallets, while Coinbase said over 99% of customer assets are offline. CertiK’s team notes that cold storage ratios reflect the online exposure of assets but cannot serve as a standalone security metric. Increasing the cold wallet ratio generally helps reduce online risks, but when the ratio is already high, the marginal benefits of further increases may be limited. Overly rigid storage ratios can also slow down withdrawals, force platforms to rush asset transfers, and concentrate risks on key management systems. CertiK recommends that trading platforms set hot wallet caps separately for different assets and blockchains, taking into account three criteria: a percentage of customer liabilities, estimated withdrawal demand, and an absolute loss cap based on the platform’s financial resources and asset recovery capacity. The firm argues that while ensuring operational liquidity, potential losses should be limited via strict dollar caps and circuit breaker mechanisms.