Improve security

Change-Id: Ia98bb629c8c81f609d3a5e4d023616a95f9c4248
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..538ba2b
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,5 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 2