IPhone5S Open icloud security? Open icloud dual authentication

The first step, we Baidu search Apple and then enter, on the web and we found the Apple ID page, click "Manage your Apple ID".

The second step, and then after we enter the Apple ID, we click on "Password and account security."

In the third step, you can choose to set up two-step authentication to start dual authentication after you answer the two previously preset security issues.

Step fourth, we need the phone number to set up the trusted device, print the recovery key, confirm the recovery key, and so on in this second step verification.

All right, here we go, we're safe.