Merging changes synced from https://github.com/MicrosoftDocs/defender-docs-pr (branch live)

Author: Learn Build Service GitHub App

.openpublishing.publish.config.json

@@ -6,7 +6,7 @@
       "build_output_subfolder": "ATA-Docs",
       "locale": "en-us",
       "monikers": [],
-      "open_to_public_contributors": true,
+      "open_to_public_contributors": false,
       "type_mapping": {
         "Conceptual": "Content"
       },