Question

How might the website owner use theses details other than to verify login details?

Answer 1

the website owner can hack your account or sometimes let say u save ur login and password. and u use a community computer that person can go through ur account and do whatever but the owner of the website will not take blame for it and can use ur info

Answer 2

They might choose ads based on your activity from your search history or to track location, and to send notifications to you.