diff --git a/event-scripts/README b/event-scripts/README
index 65fab4e..9bb6f9d 100644
--- a/event-scripts/README
+++ b/event-scripts/README
@@ -22,4 +22,5 @@ Every event script has to fulfill the following conditions:
 	- be executable (for the cryptobox user and for root)
 	- be writeable for root only
 	- its parent directories must be writeable for root only
+	- the directory of the script must contain a file called '_event_script_' (to prevent abuse)
 
diff --git a/event-scripts/_event_scripts_ b/event-scripts/_event_scripts_
new file mode 100644
index 0000000..28ad2c4
--- /dev/null
+++ b/event-scripts/_event_scripts_
@@ -0,0 +1,6 @@
+DO NOT REMOVE THIS FILE
+
+This file is part of the CryptoBox package.
+Event scripts in this directory will not get executed, if this file is missing.
+It is just a marker ...
+