Background
An InCommon Working Group defined a Multifactor Authentication Profile and a Base Level Profile to support the use of different authentication context within IdPs. They asked REFEDS to take these forward as REFEDS endorsed profiles within the REFEDS namespace to support interfederation.
The Multifactor Authentication Profile is now a fully approved and published: https://refeds.org/profile/mfa.
In parallel the REFEDS Assurance Working Group has been developing a wider assurance framework that covers identity proofing and attribute freshness.