Consider your security
Choose which features are accessible while locked
You may be happy for all of Control Centre to be available at the Lock screen on an iPad that stays at home, but want to prevent remote access to your HomeKit accessories by anyone who picks up your iPhone. You can entirely block access to Control Centre at the Lock screen (and, separately, in apps if you find that you accidentally open it while using them) in Settings > Control Centre. To disable control of HomeKit accessories at the Lock screen – using Control Centre or Siri voice control – turn off Home Control in Settings > Touch ID & Passcode.