Add or delete fingerprints on your Mac
If there are multiple fingerprints on your Mac or Magic Keyboard with Touch ID and you’re concerned one or more may not be yours, you can delete the fingerprints and then add back your own fingerprint.
Do one of the following:
On your Mac running macOS 13 or later: Choose Apple menu
> System Settings, then click Touch ID 
. On your Mac running macOS 12 or earlier: Choose Apple menu
> System Preferences, then click Touch ID .
Do any of the following:
Add a fingerprint: Click Add Fingerprint to add new fingerprint, then choose which options you’d like to use with Touch ID.
Delete a fingerprint: Click a fingerprint, enter your password, click OK, then click Delete.