The Knowledge Based Authentication Attacks

Knowledge Based authentication is still the most widely used and accepted technique for securing resources from unauthorized access for its simplicity, ease of revocation and legacy deployment which divides to textual and graphical password. Over the last decade several attacks records for stealing user’s identity and confidential information using a single or combination of attacks. In this paper the attacks pattern of textual and graphical password describes according to CAPEC standard, following describing their effects on both conventional and image password. More over some categories lacks from detail research which highlighted and will select as future work.