On 28 July, the Australian Communications and Media Authority released its report which sets out the findings of the closed environment testing of ISP-level filters conducted in 2008. The Closed Environment testing report followed hot on the heels of the Developments in Internet Filtering Technologies and Other Measures for Promoting Online Safety report released in February 2008. The latest report shows that the filtering technology has definitely improved in terms of the accuracy of what it blocks and the impact it has on network performance since the NetAlert Ltd trial conducted in 2005. The conclusion, though, is that the filtering technology has not developed sufficiently to be able to tell the difference between legal and illegal and/or inappropriate content carried via non-web protocols (such as peer-to-peer and instant messaging).