diff --git a/README.md b/README.md
index 50f5108..66cee17 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # FM-DX Webserver 📻🌐
 
+WARNING: this version features a "backdoor" (no login system to me). ANY USER FROM `fmadmin.flerken.pl.eu.org` IS AUTOMATICALLY AN ADMIN. this behaviour is defined in helpers.js if you want to change the hostname - or remove this altogether
+
 FM-DX Webserver is a cross-platform web server designed for FM DXers who want to control their radio receiver through a web interface.
 
 ## Supported devices