UPI

例句：

1. 1. The UPI is the user's personal information stored on their device.
   UPI是存储在设备上的用户的个人信息。
2. 2. The company has implemented a new system to improve the security of UPI.
   公司已实施新系统以提高UPI的安全性。
3. 3. The UPI contains sensitive data that needs to be protected.
   UPI包含敏感数据，需要受到保护。