Change access to items when iPad is locked
By default, some commonly used features (such as Today View and Control Center) are available when iPad is locked. (For security, USB connections aren’t allowed when iPad is locked.) You can change whether any of these items can be accessed from the Lock screen.
Go to Settings , then depending on your model, tap one of the following:
Face ID & Passcode
Touch ID & Passcode
Select your options.
You can turn access on or off to the following features while iPad is locked:
Today View (see View and organize Today View on iPad)
Recent notifications (see View and respond to notifications on iPad)
Control Center (see Use and customize Control Center on iPad)
Siri (see Ask Siri on iPad)
Home Control (see A look at Home on iPad)
Returning Missed Calls (see Make and receive FaceTime calls on iPad)
Connecting to a Mac, a Windows PC, or an accessory with USB (such as when you connect iPad to your computer using USB)