Hello,
A fix has been found for users that have issues with their backoffice giving them the "Too many redirects" error page. This fix specifically is if you have "Security Compromised" somewhere in the URL bar.
The premise of this error is that The PHP Session Save Path is not Writeable.
Solution: You must change the PHP Session.save_path (for cPanel/WHM users this is in the MultiPHP ini Editor) to a directory that has at least 755 permissions. Once you're finished, make sure you restart your PHP-FPM service.