Set Lock Screen Notifications to only display the sender info
You can set your BlackBerry device to only display the sender information in Lock Screen Notifications
and to hide the subject and message content.
1. On the home screen, swipe down from the top of the screen.
2. Tap Settings > Security and Privacy > Lock Screen.
3. Turn on the Show Sender Only switch.
Tip: To collapse the Lock Screen Notifications view so that only the notification icons are visible, swipe
left or tap an icon.