Identity management consists of the processes and all underlying technologies for the creation, management, and usage of digital identities. Business rely on identity management systems to simplify the management of access rights to their systems and services for both their employees and their customers. Users may benefit from identity management to simplify logging in to websites and computer systems (single sign-on), as well as streamlining management of their personal information and preferences (user centricity). Current systems for identity management only partially achieve these goals, and still suffer from several security, privacy and usability issues. We will discuss how personal mobile devices (like mobile phones and PDA’s) can be used to overcome this ’identity crisis’, to increase the security, privacy and usability of identity management systems.