two-factor authentication How two-step authentication works. Code texted to your cellphone; you enter it on website. Image: Google. Post author By Kathy E. Gill Post date 10 September 2014 No Comments on two-factor authentication By Kathy E. Gill Digital evangelist, speaker, writer, educator. Transplanted Southerner; teach newbies to ride motorcycles! @kegill View Archive → Leave a ReplyCancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.