Abstract: According to examples, an apparatus may include a processor and a computer readable medium on which is stored machine readable instructions that may cause the processor to receive a first authentication type and a second authentication type for access to an account, in which a permitted set of authentication types is to secure access to the account and the first and the second authentication types being respectively assigned a first and a second strength. The processor may determine whether the first and second authentication types meet a predefined grouping of permitted authentication types based on the first and second strengths and based on the first and second authentication types failing to meet the predefined grouping of permitted authentication types, may prevent the first and second authentication types from being set as the permitted set of authentication types for the account.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.