I was contacted on a world wide exchange and chat site, on which the contactor (disguised as a normal, friendly person) wanted to be friends. They gave me their mail address. In their first e-mail they asked me about myself and I gave them my name, my date of birth, a photo, my nationality and my interests. With their next e-mail it got clear that it was a scam. Now I'm scared of what comes next. What can I do to prevent an identity theft? What can they use these information for? I am slightly panicing here...
Note: This question is different and no duplicate to the question referred to as duplicate, since I am asking about the possible consequences of giving away date of birth in combination with further information.