I know it’s convenient to have your Chrome browser save all of your passwords so that you don’t have to type them in each time. However, this is a big security risk.
If I were you, I would go to https://passwords.google.com and turn off “Smart Lock for Passwords.” I bet you didn’t know that such a URL even existed. Scary…
Also, if you use Chrome, go to your Settings > Advanced Settings > Manage passwords and turn it off along with Auto Sign-in.