!!! Overview
[{$pagename}]s are factors that are typically used in [Authentication]. 

Generally there are three [{$pagename}] categories:
* [Knowledge Factor] - or [Something You Know]
* [Possession Factor] - or [Something You Have]
* [Inherence Factor] - or [Something You Are]

We have seen references to the following [{$pagename}], but can not find any "authoritative" source that they are "Acceptable":
* [Something You Do] - This probably a take off of the [Inherence Factor] described as a [Behavioral Characteristic]
* [Someplace You Are] - Perhaps this is a [Geolocation] as maybe considered a [{$pagename}].

A list of practical factors that might be used are the [Authentication Method Reference Values]

!! [NIST.SP.800-63]
[NIST.SP.800-63] ( or specifically "NIST.SP.800-63-2") discusses in Section 4.3, that "other types of information, such as location data or device identity, may be used by an [RP] or [Verifier] to reject or challenge a claimed identity, but they are not considered [{$pagename}]s.

Further clarification is found within "NIST.SP.800-63-3" section 4.1 where it states:
"As part of [authentication], mechanisms such as device identity or [geo-location|Geolocation] may be used to identify or prevent possible authentication false positives. While these mechanisms do not directly increase the [AAL], they can aid in enforcing security policies and mitigate risks. In many cases, the [authentication] process and services will be shared by many applications and agencies. However, it is the individual agency or application acting as the [RP] that shall make the decision to grant access or process a transaction based on the specific application requirements."


!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]