User Authentication, Authorization, and Logging
Chris Snyder, Thomas Myer, Michael Southwell · Apress eBooks · 2010
In Chapter 9, we discussed attempting to prove that your users are human. In this chapter, we will attempt to determine just who those human users are, so that you can prevent them from abusing your application. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.