A Review on Shoulder Surfing Attack in Authentication Technique

Security is a important factor in computer system now a days. Users of computer system give a primary preference to security. Authentication is a process used to provide security to the user. Authentication is a process of identifying the person’s identity or conforming the identity of a particular person. There are various authentication method, but most commonly used method is textual password. Combination of alphabet and number create a secure password. But it has some drawbacks i.e. it can be easily guess by third person also called attacker. If it make complex then it could be hard to memorize. Also it is susceptible to various attacks such as brute force attack, dictionary attack, social engineering attack, eves dropping, etc. to overcome the drawback of textual password graphical password system introduced. Graphical system is easy to memorize but it undergo shoulder surfing attack which is quite big problem. in which any entity or person can observe users password directly or by using any device. This paper survey the various shoulder surfing attacks in graphical password approach.