We need to block some users who may have access to our site.
They are about to be added to the domain group by our IT department that has been given permission to view the site but it has hundreds of users and would be preferable if we could just block a few users rather than going down another route.
I have done a bit of searching and seen a code to enter for this but I'm not particularly experienced in this field (I have inserted HTML to remove the 'Recently Modified' link but not much else). Not sure if this code needs entered on the first page, the parent page (which is a different page to our main page) or each and every page?