CertiK research team: Exchanges should set USD limits on hot wallets.

CertiK’s research team recommended that crypto exchanges set explicit U.S. dollar caps on hot-wallet holdings by asset and blockchain, rather than relying solely on cold-storage ratios as a security benchmark. The firm argued that storage ratios measure online exposure but are insufficient as a standalone security score, and that rigid thresholds can slow withdrawals, force rushed transfers, and concentrate risk in key-management systems. CertiK advised exchanges to apply the strictest of three limits: a share of customer liabilities, estimated withdrawal demand, or an absolute loss cap based on the exchange’s financial capacity and recovery ability, backed by circuit breakers. The recommendation matters because hot-wallet policy directly affects withdrawal liquidity, custody risk, and how exchanges size operational reserves. What to watch next is whether major venues disclose dollar-denominated hot-wallet limits and circuit-breaker rules alongside existing cold-storage percentages.