diff --git a/packages/app/config/default.json b/packages/app/config/default.json
index 30d58f9d..0c8e7441 100644
--- a/packages/app/config/default.json
+++ b/packages/app/config/default.json
@@ -21,6 +21,9 @@
   "signUp": {
     "moderation": true
   },
+  "defaultPreferences": {
+    "checkSigs": false
+  },
   "noteCreatorToast": true,
   "hideFromNavbar": ["/graph"],
   "deckSubKind": 1,
diff --git a/packages/app/config/iris.json b/packages/app/config/iris.json
index 5601fbcd..e7955c1b 100644
--- a/packages/app/config/iris.json
+++ b/packages/app/config/iris.json
@@ -21,6 +21,9 @@
   "signUp": {
     "moderation": false
   },
+  "defaultPreferences": {
+    "checkSigs": true
+  },
   "hideFromNavbar": [],
   "eventLinkPrefix": "note",
   "profileLinkPrefix": "npub",
diff --git a/packages/app/custom.d.ts b/packages/app/custom.d.ts
index f665a820..5fea4d16 100644
--- a/packages/app/custom.d.ts
+++ b/packages/app/custom.d.ts
@@ -59,6 +59,9 @@ declare const CONFIG: {
     deck: boolean;
     zapPool: boolean;
   };
+  defaultPreferences: {
+    checkSigs: boolean;
+  }
   signUp: {
     moderation: boolean;
   };
diff --git a/packages/app/src/Login/Preferences.ts b/packages/app/src/Login/Preferences.ts
index 1626dcf6..61543055 100644
--- a/packages/app/src/Login/Preferences.ts
+++ b/packages/app/src/Login/Preferences.ts
@@ -114,6 +114,6 @@ export const DefaultPreferences = {
   telemetry: true,
   showBadges: false,
   showStatus: true,
-  checkSigs: false,
+  checkSigs: CONFIG.defaultPreferences.checkSigs,
   autoTranslate: true,
 } as UserPreferences;