diff --git a/mmv1/products/ces/Deployment.yaml b/mmv1/products/ces/Deployment.yaml
index 2e78f1d0b012..1a830b613230 100644
--- a/mmv1/products/ces/Deployment.yaml
+++ b/mmv1/products/ces/Deployment.yaml
@@ -118,6 +118,16 @@ properties:
           - name: webWidgetTitle
             type: String
             description: The title of the web widget.
+          - name: securitySettings
+            type: NestedObject
+            description: Security settings for the web widget.
+            properties:
+              - name: enablePublicAccess
+                type: Boolean
+                description: |-
+                  Whether to enable public access for the web widget deployment.
+                  When true, the widget can be embedded without additional
+                  authentication.
   - name: createTime
     type: String
     description: Timestamp when this deployment was created.
diff --git a/mmv1/templates/terraform/examples/ces_deployment_basic.tf.tmpl b/mmv1/templates/terraform/examples/ces_deployment_basic.tf.tmpl
index 896f0df88140..080fe0b4807e 100644
--- a/mmv1/templates/terraform/examples/ces_deployment_basic.tf.tmpl
+++ b/mmv1/templates/terraform/examples/ces_deployment_basic.tf.tmpl
@@ -23,6 +23,9 @@ resource "google_ces_deployment" "{{$.PrimaryResourceId}}" {
             modality = "CHAT_AND_VOICE"
             theme = "DARK"
             web_widget_title = "temp_webwidget_title"
+            security_settings {
+                enable_public_access = true
+            }
         }
     }
 }
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