diff --git a/README.md b/README.md
index be028c1..7b38aad 100644
--- a/README.md
+++ b/README.md
@@ -199,6 +199,11 @@ http://localhost:15630
 
 > ⚠️ The root access session expires after 5 days and requires re-authentication.
 
+From 1.4.0, By default, the Web UI uses username/password authentication:
+Default username: root
+Default password: root
+
+After logging in, the user can change the default password through the Web UI.
 <img width="1523" height="677" alt="image" src="https://github.com/user-attachments/assets/a5832f0f-30c2-4c12-beff-5425f7f3b6ab" />
 
 ## 💼 License