As smart phones become more common, user authentication technologies are also evolving in various ways. In this paper, we analyze the user authentication techniques and the security techniques and safety of various types of social engineering attacks. In addition, we propose a user authentication method that provides visual convenience and better security compared to existing authentication methods. In this paper, we propose a simple authentication method, which is a combination of existing image - based facial images. In order to overcome the vulnerability of social engineering attack, The face image is displayed on each side of the polyhedron through the screen configuration. In addition, although the selected image is selected by the click or touch technique, the proposed technique includes the direction coordinates of each image displayed on the polyhedron through the three-dimensional image background as a password element, And authenticate securely.