Eduardo discovers a cease and desist letter that Mark received from the Winklevoss twins that suggests he stole the idea of Facebook from them. Eduardo acknowledges the seriousness of the letter, while Mark doesn't seem to think it's much of a concern. Mark then argues over the rights to Facebook with the Winklevoss twins.
Zuckerberg hacks the webpages of multiple fraternities and sororities to collect images of all its members. He speaks about the relative ease of hacking since many of the pages are open with available indexes.
Mark asks for recognition from the Harvard academic board for hacking into the Harvard network and exposing gaping holes in its security infrastructure. Mark tells Eduardo that he received academic probation for his actions.