diff --git a/content/notes/18-ML-in-IA-2.md b/content/notes/18-ML-in-IA-2.md
index c6e98a97a..ad796ceef 100644
--- a/content/notes/18-ML-in-IA-2.md
+++ b/content/notes/18-ML-in-IA-2.md
@@ -6,4 +6,20 @@ tags:
 - comp210
 ---
 
+# nefarious uses of ml
+## password guessing
+- normally based on heuristics that are designed by humans
+	- biased may not match true distributions of passwords
+- leaked data can be used to "learn" what to guess
+- gain insight into what users use as passwords
 
+## alternative - PassGan
+- use statistical distribution of passwords then use this to generate guesses
+
+![passGAN](https://i.imgur.com/439hrXq.png)
+
+new password generate, which also provides real world indicator of password st
+
+# bigger issues
+
+# where to from here