jdavis/twofactorauth — pull request #414 by daenney (2014-04-07 07:08:52+00:00)
Title: Add Zendesk to the list.

People have been asking Zendesk for 2-factor authentication since at least 2011. So far the company has neglected to implement support for it going as far as telling people to 'use Google SSO' or 'do it yourself through SAML'.