The person already has your phone number, and is now trying to get your full name and a picture of you, which he might use to infer your location and trace you, or even blackmail you. It sounds like he's trying to set up accounts in your name or trying to bypass security measures that some sites would have in place to authenticate your identity.
The person already has your phone number, and is now trying to get your full name and a picture of you, which he might use to infer your location and trace you, or even blackmail you. It sounds like he's trying to set up accounts in your name or trying to bypass security measures that some sites would have in place to authenticate your identity.