This is a plugin to autheticate users through the SecurePass One Time Passwords service.
A lot of web sites, even well known ones (newspapers, telcos, ...) adopts WordPress as their CMS. WordPress is a great platform, however it can happen that password leaking or guessing might lead to unauthorized access to the platform. A potential attacker can be therefore able to change articles, part of the web site and/or make the website unavailable, with image and economic damages for a company or for a blogger. This is even more true if your website is not SSL protected.
SecurePass is a SaaS service offering an easy and affordable solution for One Time Passwords (OTP) and strong authentication in general. They offer 5 users for free included with their standard (=basic) account, which is more than enough for standard blogs and web sites. Companies can purchase additional users, if needed.
More information on the section "Setup and configure SecurePass" in Other Notes. To open a SecurePass account go to http://www.secure-pass.net/open