South Korea’s Financial Services Commission is considering raising from 80% to about 99% the share of customer cryptocurrencies that exchanges must keep in cold wallets. The proposal, examined after a reported security breach at Binance, has not yet created a new binding requirement. According to end-September 2026 figures, Upbit kept 99.17% of customer assets in cold storage, while Bithumb reported 94.76%. A threshold close to 100% would reduce exposure to internet-connected wallets, but would require platforms to replenish hot wallets more frequently, increasing operating costs and potentially affecting trading fees.
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