They were colourful, reasonably well-informed and "Anonymous" as they marched though Brisbane's streets.

Many wore masks to hide their identity as they marched from Roma Street Parklands around the inner-city and into King George Square.

A small collective of supporters of the international cyber hacker group Anonymous is active in Brisbane.

However, they are less focused on cyber hacking, known as 'hacktivism', and more interested in peaceful demonstrations.