With the vast use of the Internet and specifically social media, a large number of online interaction and sharing of personal information on social media networking sites has raised new privacy issues. Against this concern, this paper will provide a conceptual understanding on the moderating factors towards online self-disclosure, which are trust and perceived risks. Trust is hypothesized to increase self-disclosure online, meanwhile perceived risks is suggested to decrease the activity. Based on the proposed framework, propositions are formulated as a basis for the study that will follow.