Open the mobile APP of China Construction Bank, and there are three horizontal bars in the upper left corner of the homepage. Click it.

After clicking "Open", enter the personal center settings and click "Security Center".

In the security center, there is an authorization management classification. Check the binding device, it must be your commonly used mobile phone device and the authentication level is strong authentication device, which is safe.

Then click Quick Payment Management in the Security Center.

On the quick payment management page, you can see the quick payment business of your authorized deposit account.

If you want to unbind a business for fast payment, please select this business, and then click Stop Authorization below to improve the security of funds.