Promote security knowledge from community to Microsoft layer

Pure git-mv relocation of the SECURITY domain from the community layer to the Microsoft layer. No content changes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

community/knowledge/security/protect-sensitive-data-in-temporary-tables.bad.al

@@ -1,27 +0,0 @@
-codeunit 50100 "Customer Temp Processor"
-{
-    // Global temporary buffer - survives across procedure calls, carries values
-    // to unrelated callers that may have no right to see them.
-    var
-        GlobalTempCustomer: Record Customer temporary;
-
-    procedure LoadCustomersForExport(FilterText: Text)
-    var
-        Customer: Record Customer;
-    begin
-        // No ReadPermission check before populating.
-        Customer.SetFilter("No.", FilterText);
-        if Customer.FindSet() then
-            repeat
-                GlobalTempCustomer := Customer;
-                GlobalTempCustomer.Insert();
-            until Customer.Next() = 0;
-
-        ExportBuffer();
-        // No DeleteAll. Data remains in the global for the lifetime of the codeunit.
-    end;
-
-    local procedure ExportBuffer()
-    begin
-    end;
-}