Wu Shuo learned that CoinEx founder and CEO Haipo Yang posted on X that CoinEx hot wallets use an MPC-based dual-signature scheme. A business system and a wallet system each hold a private key separately, and all withdrawals and transfers must undergo real-time risk control review by both teams independently. Even if one of the systems is compromised, the assets still cannot be stolen. The scheme covers nearly 300 blockchains supported by CoinEx, and the overhaul took more than a year.