VeriSign has introduced a two-factor authentication application for the Apple iPhone.


The VeriSign Identity Protection (VIP) mobile credential turns the iPhone into a dynamic VIP one-time-password credential that can be used in conjunction with a username and password to strengthen the security of online accounts.


The two-factor authentication comes in with the first factor being the username and password and the second factor being the iPhone VIP credential.


Fran Rosch, senior vice president of product and strategy at VeriSign, said: “Our ongoing efforts to strengthen the security of online accounts for mobile consumers give them the opportunity to enjoy the benefits of strong authentication through a device that's always with them and frequently in use.


“Deploying VIP credential capabilities on iPhone 3G makes strong economic sense for businesses interested in having as many users as possible take advantage of the enhanced security on their sites.”