wp-login.php

I used the rename wp-login.php and then removed the wp-login.php and yet I’m still getting login attempts??
I’ve also put a redirect to /wp-login.php to the home page.

I also have a .htaccess in the /wp-admin so use https://www.site.com/wp-admin doesn’t redirect to the login page.

Maybe I’m naive but how can someone/thing attempt to login without a wp-login.php
Is it possible to have guessed my obscure rename?