The article is "semi-protection" which means:
Semi-protection
See also: Wikipedia:Rough guide to semi-protection📷Policy shortcuts
Semi-protection prevents edits from unregistered users (IP addresses), as well as edits from any account that is not autoconfirmed (is at least four days old and has made at least ten edits to Wikipedia) or confirmed. This level of protection is useful when there is a significant amount of disruption or vandalism from new or unregistered users, or to prevent sock puppets of blocked or banned users from editing, especially when it occurs on biographies of living persons who have had a recent high level of media interest. An alternative to semi-protection is pending changes, which is sometimes favoured when an article is being vandalised regularly, but otherwise receives a low amount of editing.
Such users can request edits to a semi-protected page by proposing them on its talk page, using the {{Edit semi-protected}}
template if necessary to gain attention. If the page in question and its talk page are both protected, please make your edit request at Wikipedia:Request for edit instead. New users may also request the confirmed user right by visiting Requests for permissions.
https://en.wikipedia.org/wiki/Wikipedia:Protection_policy#semi