diff --git a/Use-Cases.md b/Use-Cases.md
index 9e5398a..91112e6 100644
--- a/Use-Cases.md
+++ b/Use-Cases.md
@@ -39,7 +39,9 @@ curl -H "Content-Type:image/png" -F file=@myImage.png http://127.0.0.1:8080/5,27
 
 The simple way is to front all master and volume servers with firewall.
 
-However, if blocking servicing port is not feasible or trivial, a white list option can be used. Only traffic from the white list IP addresses have write permission.
+The following white list option is deprecated. Please follow https://github.com/chrislusf/seaweedfs/wiki/Security-Overview
+
+A white list option can be used. Only traffic from the white list IP addresses have write permission.
 
 ```bash
 weed master -whiteList="::1,127.0.0.1"
@@ -47,6 +49,7 @@ weed volume -whiteList="::1,127.0.0.1"
 # "::1" is for IP v6 localhost.
 ```
 
+
 ## Data Migration Example
 
 ```bash