404 Error and redirect loop on WordPress login page – Sites hosted on Bluehost

It seems Bluehost has recently changed their Mod Security rules, probably to stop WordPress sites from getting hacked. But it seems genuine login attempts are also getting blocked. I’m facing this issue on several of my websites hosted at Bluehost. If I go to domain.com/wp-login.php the login page loads, but if I go to domain.com/wp-admin/…