Whaddaya know about dual factor authentication?

Probably not much, but you probably use authentication systems on a daily basis. A "factor" of dual factor authentication could be, for example, a password to verify your identity when logging into secured networks. When using dual factor authentication rather than a single factor, security is significantly enhanced. Other examples of factors are biometrics, where you are identified by your fingerprint or a scan of your eye, as well as other factors, such as "tokens" which are most commonly USB keys known as "dongles" in the geek slang world.