Regulations Governing the Deposit Accounts and Suspicious or Unusual Transactions Article 14

A bank shall use a database to consolidate basic information and transaction information on all its deposit customers for inquiries by the head office and branches, establish internal control procedures for requests and inquiries as to customer information made by various entities, and exercise care to ensure the confidentiality of the information.
中文原文 存款帳戶及其疑似不法或顯屬異常交易管理辦法第14條
銀行應以資訊系統整合其全行存款客戶之基本資料及交易資料,供其總分支機構查詢,對於各單位調取及查詢客戶之資料,應建立內部控制程序,並注意資料之保密性。

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