ARP poisoning

ARP poisoning is a mechanism we can use during the sniffing process, and its capability is quite scary. The concept is… we're going to trick people into doing something or going to a place they don't intend to, and we do this at a computer level.

Growing up, my father would tell me: "You can only trick people for so long, but until then, take advantage of the situation." Of course, he would say this in a light-hearted way—he didn't really believe this. It always seemed to him people were trying to do this to him. He was working for a movie theater chain and his job entailed going to different areas to find where managers and employees were stealing from the company. He always said people thought they could come up with a new way of finding "a way around the system" so that they wouldn't be detected, but technically, it was never a new way. It was just a new path using an old mechanism, and that old mechanism was...