securid
RSA Security offers a broad line of authentication options that enable enterprises to choose from varying levels of security based on the information they are protecting and the risk threshold they are willing to assume.

The RSA SecurID system is the world's leading two-factor user authentication solution, relied upon by thousands of organizations worldwide to protect valuable network resources. Used in conjunction with RSA ACE/Server software, an RSA SecurID authenticator functions like an ATM card for your network, requiring users to identify themselves with two unique factors something they know and something they have before they are granted access. More than 10 million people around the world use RSA SecurID authenticators to securely access VPN and Remote Access applications, Web servers and applications, network operating systems and more.