浦发银行信用卡凌晨通报“万事达无价世界卡发生未经授权的交易”：第一时间启动应急响应，阻断了风险

Group 1 - The article discusses the transaction situation of the company's Mastercard [1] - The company expresses gratitude for customer feedback and support [2] - The communication is part of the company's customer service efforts [2]