diff --git a/fw_updater_packer_by_shankerzhiwu/README.md b/fw_updater_packer_by_shankerzhiwu/README.md
index f20863b..ee3f4b1 100644
--- a/fw_updater_packer_by_shankerzhiwu/README.md
+++ b/fw_updater_packer_by_shankerzhiwu/README.md
@@ -10,4 +10,6 @@ Therefore, the hacking process requires the user to actually log into the diagno
 
 # How to create PKG
 
-To make a PKG, just edit scripts in `FwUpdater` and then type `make`.
\ No newline at end of file
+To make a PKG, just edit scripts in `FwUpdater` and then type `make`.
+
+NOTE: with this script that packs a legit PKG, potentially you can do ANYTHING to any DPT system (e.g., change diagnosis password etc.). Therefore, do TEST your script before you make one and release it.