Abstract: The present invention is portable password manager device that can directly connect to a computer and fully perform without having to pre-configure or install a software application on the said computer or on the destination systems. The invention enables setting up portable devices, which may include USB or FireWire interfaces, flash memory, PDA's and cellular devices, to perform automatic signing-in to multiple information system destinations. A single device may manage multiple user configurations for more then one user, and multiple login credentials for the same destination system under a single user configuration. One user identifies to the device, all device activity is performed in a fully automatic manner turning the login process totally transparent for the user.