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Slyck began the investigation when BlueTack's 'Paranoid' IP filter blocked one of TVUnderground's new eDonkey2000 servers. A request for comment or information on the matter to BlueTack's team went unanswered. To this day, why BlueTack has blocked only one of TVUnderground's servers is unknown. In the meantime, Slyck is currently in the possession of a copy of BlueTack's IP filter lists, and further investigation into related matters appeared warranted.While BlueTack may still perpetuate the idea that their filters are 99% effective, these latest findings will only fuel criticisms towards BlueTack's actual effectiveness. A complete test might not be possible short of creating a simple program to test every single number or spending weeks hand-testing every single Media Defender IP address. In the mean time, it seems very apparent that BlueTack's filters have a few holes
The total number of IPs used by Media Defender starting with 116 was 1,474. Obviously, BlueTack did block all IPs that started with 116, but how many Media Defender IPs were successfully blocked? When Slyck investigated, there was a common theme that blocklists seemingly jumped over several ranges used by Media Defender. After some extensive study using the Level1 list for anti-p2p companies and the 'Paranoid' list, BlueTack would have successfully blocked 16 IPs. Thus, this sample test offered 1.09% protection against Media Defender in that range.The IPs that were successfully blocked were: 116.255.1.109, 116.255.1.154, 116.255.1.244, 116.255.1.27, 116.255.1.52, 116.255.1.85, 116.215.157.243, 116.212.14.223, 116.199.202.170, 116.199.202.240, 116.199.207.83, 116.199.207.84, 116.199.226.78 , 116.199.227.11, 116.199.227.27, 116.199.227.67. The remaining 1,458 IPs would still be allowed through even with these two filters being used today.While BlueTack may still perpetuate the idea that their filters are 99% effective, these latest findings will only fuel criticisms towards BlueTack's actual effectiveness. A complete test might not be possible short of creating a simple program to test every single number or spending weeks hand-testing every single Media Defender IP address. In the mean ime, it seems very apparent that BlueTack's filters have a few holes.