Two-factor authentication combines something you know (such as a username and password) with something you have (a credential such as a card, token, or mobile phone) to verify an identity or to verify a transaction. VeriSign® Identity Protection (VIP) Authentication Service provides the validation for "something you have" in an easy-to-deploy cloud-based offering that balances cost, convenience, and risk.

VIP Authentication Service
A unique, cloud-based service used to authenticate OATH-compliant credential form factors without the cost or complexity of an on-premise solution. Learn more

Compare Two-Factor Authentication Credentials
Our experts help you evaluate risk, user experience, and the cost/benefit of form factors: credit cards, mobile phones, tokens, and more. . Learn more

VIP Network Members
Rely on VIP credentials distributed by VeriSign and other VIP Network members to reduce the cost of deploying two-factor authentication to consumers. Learn more