Crypto exchanges need hard dollar caps on hot wallets, CertiK says

“Cold storage is a useful measure of online exposure, but it is not a standalone security score,” the cybersecurity firm told Cointelegraph. Crypto exchanges should impose hard dollar limits on their hot-wallet holdings rather than relying solely on cold-storage ratios to measure security, according to cybersecurity firm CertiK. The recommendation came as several crypto exchanges recently disclosed how much they held in cold wallets , seeking to reassure customers after the record Binance hack that targeted its hot wallets.