diff --git a/security-through-obscurity/grader.py b/security-through-obscurity/grader.py
new file mode 100644
index 0000000..7e098b4
--- /dev/null
+++ b/security-through-obscurity/grader.py
@@ -0,0 +1,4 @@
+def grade(autogen, answer):
+    if answer.find("i_actu4lly_d0nt_know_th3_name_of_th15_crypt0sy5tem") != -1:
+        return { "correct": True, "message": "Correct!" }
+    return { "correct": False, "message": "Nope, try again." }
\ No newline at end of file