diff --git a/packages/wallet/dapp-client/src/DappTransport.ts b/packages/wallet/dapp-client/src/DappTransport.ts
index 072fa056f..2dc898f74 100644
--- a/packages/wallet/dapp-client/src/DappTransport.ts
+++ b/packages/wallet/dapp-client/src/DappTransport.ts
@@ -513,6 +513,10 @@ export class DappTransport {
   }
 
   private generateId(): string {
-    return `${Date.now().toString(36)}-${Math.random().toString(36).substring(2, 9)}`
+    // Use crypto.getRandomValues for cryptographically secure randomness
+    const array = new Uint32Array(1);
+    window.crypto.getRandomValues(array);
+    const randStr = array[0].toString(36);
+    return `${Date.now().toString(36)}-${randStr}`;
   }
 }