diff --git a/International Strategic/Vietnam/README.MD b/International Strategic/Vietnam/README.MD
index 05a96a3..3050ae1 100644
--- a/International Strategic/Vietnam/README.MD	
+++ b/International Strategic/Vietnam/README.MD	
@@ -3,3 +3,6 @@
 https://blog.en.elevenpaths.com/2019/04/new-research-docless-vietnam-apt.html
 
 
+# Operation Ducktail
+
+https://www.zscaler.com/blogs/security-research/new-php-variant-ducktail-infostealer-targeting-facebook-business-accounts