Hi. I need to implement 2 factors authentication using DotNetNuke. Any idea what's the approach I could take? I have visited BrandonHaynes.Membership.MultifactorMembershipProvider, however, it doesn't work.

That would have been my recommendation. Have you tried communicating with Brandon Haynes? I seems like one of the very helpful people, and is accessible.

Hi Joe, I tried, but so far no replies from him.. do u have any idea how the multifactor works?

He has written about it, and there is a link here: http://blogs.law.harvard.edu/brando...ent-system