diff --git a/status-spec.md b/status-spec.md
index 791617c..f6f7e46 100644
--- a/status-spec.md
+++ b/status-spec.md
@@ -196,7 +196,10 @@ for i = 0; i < topic_len; i++ {
 
 ## Secure Transport
 
-<!-- TODO: Provide outlink for current PFS spec -->
+In order to provide confidentiality, integrity, authentication and forward
+secrecy of messages we implement a secure transport on top of Whisper. This is
+used in 1:1 chats and group chats, but not for public chats. See [Status Secure
+Transport Spec](status-secure-tansport-spec.md) for more.
 
 ## Data Sync