The slides from my talk at PHP Tek 11.
When dealing with money online, fraud is an ongoing problem for both
consumers and sellers. Researchers have been developing statistical
and machine learning techniques to detect shady sellers on auction
sites, spot fraudulent payments on e-commerce systems and catch click
fraud on adverts. While there is no silver bullet, you will learn to
flag suspicious activity and help protect your site from scammers
using PHP and a little help from some other technologies.