Just a quick note to let you know that FMAuthenticator 2.0, a technique for implementing two-factor authentication (2FA) in FileMaker-based solutions, is now available. The new version is open source and is entirely self-contained within the FileMaker database itself. (Unlike the previous vesion, there is no longer a Web service involved.)
FMAuthenticator was originally available as a paid service. If you're interested in why I've decided to release it as open source, check out this blog post.
To download FMAuthenticator, visit: http://fmauthenticator.com