You can ask them to send a picture of them next to a current newspaper or a screen with today’s date on it. That way, they can prove that they are taking the picture that day instead of stealing it from someone else. You could also ask them to send a photo of themselves doing a specific action, such as sticking out their tongue or touching their nose.
If they cannot send a picture with one of these specific actions, then it is safe to assume that they are not who they say they are. Read more