diff --git a/README.md b/README.md
index 9bb2e8f..5fbdba5 100644
--- a/README.md
+++ b/README.md
@@ -6,5 +6,5 @@ Requirements :
 - Visual Studio 2015 or later,
 - Download [bento4](https://www.bento4.com/downloads/) Windows binaries version 1.5.1-620 or later,
 - Specify, in the code, the key id and key seed.
-
+- For education purposes only
 For more information, please read this [article](https://drmstuff.com/public/d/1226-how-to-decrypt-a-playready).