Cognos Mobile Two Factor Authentication

[Pacman73]

Our company policy ( due to sensitive data ) is that any external facing systems - ie. accessible via public internet - must be authenticated via two factor authentication.

We have a large number of users that get a huge benefit from using the Cognos Mobile App, but at the moment it's still single ( Actvie Directory ) authentication.   I'm interested to know if anyone else succeeded in adding two factor authentication to Cognos  Mobile and how you achieved it...

( Cognos BI 10.2.2 btw )