diff --git a/docs/Assignments/week_11_Networking/networking.md b/docs/Assignments/week_11_Networking/networking.md
index f1c8783..53d0570 100644
--- a/docs/Assignments/week_11_Networking/networking.md
+++ b/docs/Assignments/week_11_Networking/networking.md
@@ -273,6 +273,8 @@ They should be the same on each board you wanna communicate with. The only flaw
     }
     ```
 
+The reason this can be done without low overhead is because some ESP models have hardware encryption accelerators build in for AES-128. and that's also the encryption what is used in this ESPNow protocol when enabled.
+
 ## Charging my new batteries
 This week I got my Li-Po batteries delivered.