diff --git a/Cloud-storage.md b/Cloud-storage.md
index 6c29e07..833e902 100644
--- a/Cloud-storage.md
+++ b/Cloud-storage.md
@@ -28,6 +28,10 @@ If ever an export operation causes the cloud storage capacity limit to be reache
 
 If you do not have a syncing account with your browser vendor, I have observed that the cloud storage can still be used as a local clipboard to save a pane settings. Might be convenient sometimes, but please do not use cloud storage as a replacement for [uBlock Origin's backup feature](https://github.com/gorhill/uBlock/wiki/Dashboard:-Settings#backuprestore-section). It is recommended you back up your settings regularly, this is especially true for those who have extensive custom static filters, custom rules, whitelist directives.
 
+***
+**Important:** Some browsers offer the ability to use a passphrase for their sync feature, in order to enabled end-to-end encryption of the data stored for sync purpose ([example](https://support.google.com/chrome/answer/1181035)). It is strongly suggested to make use of such passphrase.
+***
+
 #### Caveats
 
 Cloud storage services offered by specific browser vendors have their own limitations and quirks -- and this is out of control of uBlock.