US Patent 10567951 Dynamic identities in a mobile device

A mobile device (1) is configured to receive a plurality of identity profiles from a server system (11), store the plurality of identity profiles in a storage means (7), select a first identity profile from the plurality of identity profiles, and transmit authentication information to a mobile communication network (21,22,25) in order to use the mobile communication network. The authentication information comprises an identifier from the first identity profile. The mobile device is further configured to detect an identity change event, select a second identity profile from the plurality of identity profiles upon detecting the identity change event, and transmit further authentication information to the mobile communication network or to a further mobile communication network (23,26). The further authentication information comprises an identifier from the second identity profile.