diff --git a/README.org b/README.org
index dda0112..6c5b2ca 100644
--- a/README.org
+++ b/README.org
@@ -93,12 +93,13 @@
 
     2. Copy and paste the *oneliner* from the top of this README
 
-    3. Source /sf/ from the web with =curl=:
+    3. Source /sf/ from the web for example with =curl=:
        #+begin_src sh
          source <(curl -s https://raw.githubusercontent.com/Deleh/sf/master/sf)
        #+end_src
-       *Note* that this adds an online dependency to your script and if /sf/ changes, your script may break.
-       This method should only be used for testing purposes.
+       *Note* that this adds an online dependency to your script AND that sourcing from a web resource might be a potential security issue.
+       The master branch should only be used for testing purposes in this method.
+       Replace =master= in the URL with a commit hash to prevent future changes in /sf/ breaking your script.
 
 *** 3. Write your script