Why can other people's fingerprints unlock the Xiaomi 14?

Please confirm whether you have enabled face or Bluetooth unlocking. When face or Bluetooth recognition succeeds (observe the checkmark icon at the top of the screen), you can enter the desktop by tapping the fingerprint area. This unlock method is not fingerprint unlocking. Please disable face and Bluetooth unlocking, then delete and register the fingerprint again.
To address this issue, it is recommended to refer to the following steps:
1. Disable face unlock: Go to [Settings] >> [Fingerprints, face data, and screen lock] and ensure that face unlock and Bluetooth unlock features are turned off;
2. Delete and re-register your fingerprints: Remove existing fingerprint data and re-register your fingerprints to ensure only authorized fingerprints can unlock the device.