'Bobby Tables’ 'Bobby Tables’ is a member of Anonymous – a loose community known for civil disobedience online while staying hidden. Bobby says he joined Anonymous after Visa, MasterCard and PayPal decided to remove their services from WikiLeaks. He says he’s been involved in a number of global operations, including in the Middle East and the United States, under the Anonymous banner.

'Charrie Wong’ 'Charrie Wong’ says he’s the leader of the Wongz – a group which he says hacks for fun as well as to embarrass governments and expose big corporations. The 15 year old says it’s fun to know that someone his age can hack into protected websites. Charrie says he sometimes joins with other hacktivist groups if their causes appeal to him.

Grant Edwards Commander Grant Edwards runs the Cybercrime Operations Unit for the Australian Federal Police. Grant joined the AFP in 1985 and supervises investigations into cybercrimes such as hacking and denial of service attacks.

Suelette Dreyfus Suelette Dreyfus is a journalist, writer and a research fellow at Melbourne University. She’s also the author of Underground: Tales of Hacking, Madness and Obsession on the Electronic Frontier which looks at the underground world of hackers in Australia. WikiLeaks founder, Julian Assange, helped Suelette research the book.