On Friday, the High Court ruled that iiNet had not authorised the copyright infringement of its users through BitTorrent, because iiNet's power to stop its customers' infringement was limited to being able to switch off the internet access entirely. As such, iiNet's decision not to act on infringement notices provided by the film studios' lobby group Australian Federation Against Copyright Theft (AFACT) did not amount to authorising the customers' infringement.
Full case and other links are here.
http://www.zdnet.com.au/iinet-decision-not-a-free-pass-experts-339336445.htm