diff --git a/src/govoplan_scheduling/backend/service.py b/src/govoplan_scheduling/backend/service.py
index ff27389..19b8530 100644
--- a/src/govoplan_scheduling/backend/service.py
+++ b/src/govoplan_scheduling/backend/service.py
@@ -1895,7 +1895,8 @@ def _public_scheduling_participation_response(
             ),
             "cancellation_notice_only": True,
             "participant_email_required": False,
-            "anonymous_password_required": False,
+            # Boolean policy projection, not a password or credential value.
+            "anonymous_password_required": False,  # nosec B105
             "single_choice": False,
             "allow_maybe": False,
             "allow_comments": False,