diff --git a/TODO.md b/TODO.md
index 45e45d5..66c2b6f 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,7 @@
 # TODO
 
+* aquatic_udp needs to check connection validity before sending error responses! connection validity checks could be moved to socket workers, since theyare sharded by ip
+
 * access lists:
   * use arc-swap Cache
   * test functionality