Every smartcard contains a specific, unique and not modifiable serial number for SurfPass. All parameters like the value of the purse or user personalization data are stored in a machine of the local area network or in a FTP server. This operating mode is completely transparent for the user. SurfPass works as background task of Windows and as soon as a card is inserted into the reader, SurfPass is going automatically to read it then access to the corresponding user account. If this account exists and is valid, SurfPass starts a session.
Cards have no limitation of lifetime.
In case of theft or of loss, it is enough to remove the account of the smartcard in the users database. The prices for the smartcards are among the lowest of the market. These operations can be made from any user machine, even though for reasons of comfort it is advised to have a machine dedicated to the administration and to the recharging. In every card corresponds a name, what allows reloading the corresponding account in the list of user accounts. In that case, if the administrator wishes a dedicated machine, is enough to buy an additional SurfPass license.