diff --git a/changelog.d/5-internal/wpb-9844 b/changelog.d/5-internal/wpb-9844
new file mode 100644
index 00000000000..cbf16c484b3
--- /dev/null
+++ b/changelog.d/5-internal/wpb-9844
@@ -0,0 +1 @@
+Added warning when deploying wire-server helm chart with User/Team creation over internet enabled.
diff --git a/charts/wire-server/templates/NOTES.txt b/charts/wire-server/templates/NOTES.txt
index 2f93387327c..f6f59e0eda2 100644
--- a/charts/wire-server/templates/NOTES.txt
+++ b/charts/wire-server/templates/NOTES.txt
@@ -1,2 +1,5 @@
 
-TODO: write nice NOTES.txt
+{{- if not (index .Values "brig" "config" "optSettings" "setRestrictUserCreation") }}
+⚠️ ⚠️ ⚠️ User/Team creation is possible from outside the cluster, via Internet ⚠️ ⚠️ ⚠️
+To disable, Set brig.optSettings.setRestrictUserCreation to true.
+{{- end  }}