Face Recognition: Setting Up Your Photo
Face Recognition is optional and currently in beta. It only ever runs for an employer you have agreed to it for.
Open EDIT PROFILE > Face Verification Profile Photos. You get one entry per employer who has asked for it, each with its own Face Recognition Consent switch showing Granted or Not Granted. Turn the switch on to agree, off to withdraw at any time.
Once you consent, your employer requests a profile photo and then approves or rejects it. Your photo is used only to check that it is you during work sessions, and is never shared with other employers.