Fraud Crime Hazard Prevention Act Article 34

Third-party payment service providers shall exercise the obligations of care as a good administrator. For customers suspected of involving in fraud crimes, the providers shall enhance identity verification processes and may implement measures such as ongoing identity reviews, postponed appropriation, refusal to establish business relationships, or providing services.When third-party payment service providers implement the operations in the latter part of the preceding paragraph, they may use the joint defense system to notify industry peers.The standards for identifying customers suspected of involvement in fraud, notification procedures, and items, operational processes, and other matters shall be established by the competent authority for industries related to the digital economy.
中文原文 詐欺犯罪危害防制條例第34條
第三方支付服務業者對客戶應盡善良管理人之注意義務;對疑似涉及詐欺犯罪之客戶,應強化確認客戶身分,並得採取對客戶身分持續審查、延後撥款、拒絕建立業務關係或提供服務等控管措施。
第三方支付服務業者執行前項後段規定作業時,得使用聯防系統通知同業業者。
前二項疑似涉及詐欺犯罪之客戶認定基準、通知程序、項目、作業程序及其他相關事項之辦法,由數位經濟相關產業主管機關定之。

English translation for reference only; the Chinese text prevails. Not legal advice.