diff --git a/README.md b/README.md
index 657de6e..f8c4c74 100644
--- a/README.md
+++ b/README.md
@@ -114,6 +114,7 @@ Context:
 
 
 ## Other methdology
+* It is known that proprietary software (especially closed source software) is less secure (No windows servers).
 * [Things you should do now](https://secure.phabricator.com/book/phabflavor/article/things_you_should_do_now/)
 * Follow [naming conventions](https://visualgit.readthedocs.io/en/latest/pages/naming_convention.html)
 * Follow [software engineering laws](https://www.netmeister.org/blog/software-engineering-laws.html)