add security warning on nip-04.

1 files changed, 4 insertions, 0 deletions

diff --git a/04.md b/04.md
index 153456a..63b1177 100644
--- a/04.md
+++ b/04.md
@@ -43,3 +43,7 @@ let event = {
   content: encryptedMessage + '?iv=' + ivBase64
 }
 ```
+
+## Security Warning
+
+This standard does not go anywhere near what is considered the state-of-the-art in encrypted communication between peers, and it leaks metadata in the events, therefore it must not be used for anything you really need to keep secret, and only with relays that use `AUTH` to restrict who can read your `kind:4` events.