Abstract: One or more users (42) are identified based on typing pattern and/or behavior in a computerized system. A typing input is generated by one or more authorized users (42) by touching a touch sensitive input interface (12) at a touch coordinate that is linked to a given interface element displayed by the input interface (12). Collected touch coordinates are processed to generate a typing pattern specific of the authorized users (42), and the user-specific typing pattern is stored in a database (20). Touch coordinates generated by an un-identified user are processed to generate a typing pattern specific of the un-identified user (42), and the typing pattern of the un-identified user (42) is compared with the user-specific typing pattern stored in the database (20). The un-identified user is identified as (42) as one of the authorized users or as a non-authorized user.