its => their

Page: https://symfony.com/doc/current/security.html#login-programmatically

Author: ThomasLandauer

security.rst

@@ -1659,7 +1659,7 @@ You can log in a user programmatically using the `login()` method of the
             // you can also log in on a different firewall
             $security->login($user, 'form_login', 'other_firewall');
 
-            // ... redirect the user to its account page for instance
+            // ... redirect the user, e.g. to their account page
         }
     }