diff --git a/admin_manual/configuration/configuration_encryption.rst b/admin_manual/configuration/configuration_encryption.rst
index 9be36434e..18930182f 100644
--- a/admin_manual/configuration/configuration_encryption.rst
+++ b/admin_manual/configuration/configuration_encryption.rst
@@ -118,6 +118,17 @@ to their encrypted files by supplying the Recovery Key on the Users page.
 
 .. figure:: ../images/encryption8.png
 
+Files Not Encrypted
+-------------------
+
+Only the data in your files is encrypted, and not the filenames or folder
+structures. These files are never encrypted:
+
+- Old files in the trash bin.
+- Image thumbnails from the Gallery app.
+- Previews from the Files app.
+- The search index from the full text search app.
+
 LDAP and Other External User Back-ends
 --------------------------------------