By default, anyone can see your iPhone or iPad notification center while your device is locked by swiping up on the lock screen. There they can see an overview of your recent notifications. Fortunately, it is easy to disable it while it is locked. Here’s how.
To start, open the Settings app on your iPhone or iPad.
In Settings, look for “Face ID & Passcode” (for devices with Face ID) or “Touch ID & Passcode” (for devices with a home button) and tap it.
Then enter your access code.
In the passcode settings, find the “Allow access when locked” section. Tap the switch next to “Notification Center” until it is turned off.
That’s all it takes. Now exit Settings by going to your home screen and then locking your device. You will find that you can no longer access the notification center on the lock screen.
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Notifications may still be visible on the lock screen
Keep in mind that even if you turn off Notification Center on your lock screen, people may still be able to see notifications on your lock screen as soon as they arrive. To turn off notifications on the lock screen completely, you need to go to Settings> Notifications. In the apps list, tap the app that sends notifications and uncheck the “Lock screen” box in the “Alerts” options.
Repeat with any app you want to hide lock screen notifications for. Good luck!
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