OKX CEO Star Xu urges exchange-level security for DEX bots after Flow's $3.9M exploit

On December 28, 2025, OKX CEO Star Xu called for decentralized exchanges and trading bots to meet exchange-level security standards after weekend exploits exposed risks. He warned that many bot products store users' private keys on centralized servers, and highlighted OKX's planned smart accounts using TEE and the conceptual OKX Pay. The Flow team said about $3.9M was moved off-network in a recent attack.