On Thu, Aug 28, 2014 at 10:12 AM, Sathya Narayanan <mycer...@gmail.com> wrote: > We need 2 factor auth not by just entering the pin, but to dail a phone > number and confirming.
This is possibly a multi-step verification rather than 2-factor authentication. Multi-factor authentication is essentially a 2 out of 3 approach of the following - (i) something the end user has; (ii) something the end user knows; and (iii) something that only the end user is -- sankarshan mukhopadhyay <https://about.me/sankarshan.mukhopadhyay> _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ILUGC Mailing List Guidelines: http://ilugc.in/mailinglist-guidelines