diff --git a/exam/ex.tex b/exam/ex.tex
index 735e457..d76a3c9 100644
--- a/exam/ex.tex
+++ b/exam/ex.tex
@@ -182,7 +182,8 @@
 
     \item \TODO
 
-    \item \TODO
+    \item IND-CCA2 is proven for both the KEM and the PKC. IND-CPA is proven for
+      the KEM.
 
     \item \TODO