!!! Overview
[{$pagename}] is an [Authentication] which has Two [Authentication Factors] and is a form of [Multi-Factor Authentication]

The most common types use either [Tokens] ([Hard tokens] or [Soft tokens] or [One-Time Password Systems]).

Some use a [Biometric Token] ([Something You Are]) as used in [Biometric Authentication].

!! Most Common [{$pagename}] Systems
The most common types use either [Tokens] ([Hard tokens] or [Soft tokens] or [One-Time Password Systems]).

The Good part is:
* Many on the market.
* Easy to integrate into existing systems.
* Typically used in [VPNs] ([RADIUS] type systems)
* Users understand the systems
* Any machine or device maybe used.

The not so good
* Single vendor commitment as no cross vendor standards. (Mitigated by use of [OpenID Connect])
* Requires [software] and or [Hardware] be utilized for [Implementation].!! More Information
There might be more information for this subject on one of the following:
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