PhoneFactor CTO Steve Dispensa explains how to thwart network attacks using phone-based, two-factor authentication. Dispensa discusses some ideal scenarios for this type of authentication and explains how it can prevent unauthorized access to critical data and systems. He also reviews the simplicity of installation and support for this rapidly growing technology.
http://www.eweek.com/c/a/Security/How-to-Thwart-Network-Attacks-with-TwoFactor-Authentication/