Smart Card Contactless technology is used in applications that need to protect personal information and/or deliver fast, secure transactions. Such as transit fare payment cards, government, and corporate identification cards. Documents such as electronic passports and visas, and financial payment cards. Smart card systems have proven to be more reliable than other machine-readable cards. Like magnetic stripe and barcode, with many studies showing card read life and reader life improvements demonstrating the much lower cost of system maintenance. Smart cards also provide vital components of system security for the exchange of data throughout virtually any type of network. They protect against a full range of security threats, from careless storage of user passwords to sophisticated system hacks. The costs to manage password resets for an organization or enterprise are very high, thus making smart cards a cost-effective solution in these environments.