ios - 另外一台设备更改密码如何通知原设备?

Question

现在一台设备已经自动登录,然后把它退到后台,我在另外一台设备更换了密码,
现在我想知道的是我当前的设备再次进入的时候怎么去知道密码已经被修改了?
还有如何只能让一个账号同时只能登录一台设备?

Answer 1

This is the logic of the backend. The backend verifies the token. Every time you take the token to the backend for verification, the backend will tell you the current status. You can discuss the details with the backend partners. You can also make a notification and wait before entering. Is the procedure a little late?

Answer 2

Change password/just log out of the original session when logging in

Answer 3

Achieved through background logic. The backend server will know when the password is changed, and then send a notification to another logged-in mobile phone