An anonymous reader writes "'[The BBC] managed to acquire its own low-value botnet — the name given to a network of hijacked computers — after visiting chatrooms on the internet. The programme did not access any personal information on the infected PCs. If this exercise had been done with criminal intent it would be breaking the law. But our purpose was to demonstrate botnets' collective power when in the hands of criminals.' The BBC performed a controlled DDoS attack, 'then ordered its slave PCs to bombard its target site with requests for access to make it inaccessible.'"