Hide Text Previews
Being able to see the contents of an iMessage on your Lock Screen or as a banner notification is useful sometimes. But it can also make your texts visible to prying eyes. That’s worrisome if you’re receiving sensitive or confidential information.
You can individually tailor your settings for this, however. Just head to Settings > Notifications > Messages and scroll down until you see Show Previews. From here, you can choose between When Unlocked or Never depending on your preferences and circumstances.