In case you have forgotten the new login URL, this is how you retrieve WP login URL that you changed using All in One WP Security plugin(AIOWPS).

Follow these steps:

1. Login to your phpmyadmin.

2. Go to wp_options table.

3. Search for option name “aio_wp_security_configs”. You can also search it from the search tab.

4. Edit the row which has option name “aio_wp_security_configs”.

5. Check for “aiowps_login_page_slug” in option value field. You can see your login page slug next to “aiowps_login_page_slug”. (The array value is serialized, there should be some array index in-between “aiowps_login_page_slug” and your login page slug. Eg: s:3 ).