How Aaron Barr Infiltrated Anonymous, and Why He Decided to Do It. Ars Technica's Nate Anderson has put together a long and fascinating report on the tumultuous recent history of Aaron Barr -- the security expert who successfully infiltrated Anonymous, and then got burned, after running to the FBI with his findings. Based on e-mails he sent before beginning his mission, it's clear that Barr's motives, from the very beginning, were profit-driven. A social media fanatic, Barr firmly believed that he could use data from sites like Facebook and LinkedIn to identify any hacker in the world, including members of Anonymous. "Hackers may not list the data, but hackers are people too so they associate with friends and family," Barr wrote in an e-mail to a colleague at HBGary Federal. "Those friends and family can provide key indicators on the hacker without them releasing it....
" Some of his colleagues at HBGary, however, soon became uneasy with the direction that Barr was taking his investigation. Hackers Clash With HBGary Over Secret Inquiries.