Microsoft Technology Licensing, LLC

Li Qing Xia

Amit Gupta

Eran Shtiegman

Benjamin Richard Vincent

Kelly Elizabeth Rollin

Marcelo Daniel Truffat

Jia Le He

Dejan Subotic

Ginger Elizabeth Tien

Thomas McNeill

Alan Jonathan Lundeen

A method and system for authenticating a user is provided. In some embodiments, a security system determines whether the time since the last authentication was successful is less than a recycle telephone number period (e.g., the minimum time before which a telephone number might be assigned to a new user). If the time is less than the recycle telephone number period, the security system performs a primary authentication of the user based on a telephone number received from the user. When the primary authentication is successful, the security system indicates that the user has been authenticated. When the time is not less than a recycle telephone number period, the security system performs a secondary authentication of the user. When the secondary authentication is successful, the security system indicates that the user has been authenticated.

Authentication based on telephone number recycling

Facilitating single sign-on on a device having sandboxed applications. A method includes identifying a plurality of associated applications. Criteria are evaluated to identify a primary application. Authentication state is stored at the primary application. One or more portions of the authentication state can be used by the applications in the plurality of associated application for authentication.

Single sign-on without a broker application

Static user information such as address, title, phone number(s), email address(es) and dynamic user information such as location, calendar, current phone number(s), etc. are combined in a dynamically updateable subscriber contact card for publishing to other applications. The subscriber contact card also includes user defined access controls for restricting access to portions of the information by select users. Other applications provide services such as communication services based on up-to-date information through the subscriber contact card.

Aggregated subscriber profile based on static and dynamic information

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Seattle, WA, United States of America

Li Qing Xia