Limit access to your iPhone or iPad
If you’re using iOS 15 or earlier, use this checklist to see who has access to your devices or your Apple ID. If you’re using iOS 16 or later, see How Safety Check on iPhone works to keep you safe.
Check which devices are signed in to your Apple ID by going to Settings > [your name]. If you see a device you don’t recognise, tap on that device name and select “Remove from Account”.
Check to see if there is an unexpected alternative Face ID appearance or additional Touch ID fingerprint set up on your device by following these instructions: Set up Face ID and Set up Touch ID on your iPhone or iPad.
Sign in to the Apple ID website (https://appleid.apple.com) and review all the personal and security information in your account to see if there is any information that someone else has added.
If you have two-factor authentication turned on, review trusted devices for any devices that you don’t recognise. If you don’t have it turned on, you can turn it on by following these instructions: Set up two-factor authentication on your iPhone or iPad.
Review the installed apps on your device and look for apps you don’t recognise or don’t remember installing. You can look up any apps you find in the App Store to see what their purpose is.
Mobile device management (MDM) configuration profiles — typically installed by employers, schools or other official organisations — allow additional privileges and access to a user’s devices. To look for an unknown MDM configuration profile on your devices, see Delete unknown configuration profiles from your iPhone or iPad.
To see if anything has been changed in or added to your sharing permissions, see the checklist How to stop sharing your iPhone or iPad location.