Using social information for authenticating a user session

G - Physics – 06 – F

Patent

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G06F 21/00 (2006.01)

Patent

CA 2751490

A social CAPTCHA is presented to authenticate a member of the social network. The social CAPTCHA includes one or more challenge questions based on information available in the social network, such as the user's activities and/or connections in the social network. The social information selected for the social CAPTCHA may be determined based on affinity scores associated with the member's connections, so that the challenge question relates to information that the user is more likely to be familiar with. A degree of difficulty of challenge questions may be determined and used for selecting the CAPTCHA based on a degree of suspicion.

L'invention concerne un captcha social pour authentifier un membre du réseau social. Le captcha social comprend une ou plusieurs questions de défi basées sur des informations disponibles sur le réseau social, telles que des activités et/ou des connexions de l'utilisateur sur le réseau social. Les informations sociales sélectionnées pour le captcha social peuvent être déterminées sur la base de scores d'affinité associés à des connexions du membre, de sorte que la question de défi concerne des informations que l'utilisateur est plus susceptible de bien connaître. Un degré de difficulté des questions de défi peut être déterminé et utilisé pour sélectionner le captcha sur la base d'un degré de suspicion.

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