diff --git a/packages/frontend/src/components/SkFlashPlayer.vue b/packages/frontend/src/components/SkFlashPlayer.vue
index 26f3c17f4e..0b95de8c33 100644
--- a/packages/frontend/src/components/SkFlashPlayer.vue
+++ b/packages/frontend/src/components/SkFlashPlayer.vue
@@ -135,8 +135,8 @@ async function loadRuffle() {
 		'quality': 'high',
 		'splashScreen': false,
 		'preferredRenderer': null,
-		'openUrlMode': 'allow',
-		'allowNetworking': 'all',
+		'openUrlMode': 'deny',
+		'allowNetworking': 'none',
 		'favorFlash': true,
 		'socketProxy': [],
 		'fontSources': [],