How to completely restrict access to a Cluster in Filament, even with a direct URL?

I have a BeShield class in my Filament project that extends Cluster. I disabled access by using the canAccess() method, returning false, so access should be restricted. However, when I directly enter the URL, like http:// localhost:8000/app/be-shield/compliances, the page is still accessible. How can I ensure that access is fully restricted, even when attempting to access the page directly via the URL?