Auto fill

Hey there Autofillquery,

Thanks for reaching out to the community.

You can turn off AutoFill to keep your data from appearing on your iPhone. Use these steps:

You can turn off AutoFill for your contact or credit card information, and for passwords. This is helpful in situations where you don’t want your contact or credit card information to be readily available—for example if you share a device with others.

* Turn off AutoFill for your contact or credit card information: Go to Settings  > Safari > AutoFill, then turn off either option.

* Turn off AutoFill for passwords: Go to Settings > Passwords, unlock the screen, tap AutoFill Passwords, then turn off AutoFill Passwords.

Automatically fill in your information in Safari on iPhone - Apple Support

Take care!