diff --git a/secret/README.md b/secret/README.md
index ce252cd037..7c4ec83e9f 100644
--- a/secret/README.md
+++ b/secret/README.md
@@ -3,6 +3,7 @@ Encrypted secret storage
 # Secret Service
 
 Store secrets, tokens, passwords and key-value config in encrypted data storage. 
+Data is encrypted using AES-256.
 
 Keys are individually allocated spaces for values. Values are encrypted at rest. 
 Values can be strings or JSON with path based lookup if the latter.