Matthew Delorey was the owner of the defunct website Massmodz.com, where hacked modems were sold. The modems had been modified in order to spoof the device's MAC (Media Access Control) address which allows free internet access.
He posted tutorial videos with titles such as "Massmodz.com How to Get Free Internet Free Cable Internet Comcast or any Cable ISP - 100% works" and "Massmodz.com How to bypass Comcast registration page with premod cable modem SB5100, SB 5101."