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Originally Posted by Molitoth
VPN services.
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IPV6 opened up a huge security hole regarding VPN services that effectively makes them worthless with regards to torrent privacy...
http://torrentfreak.com/huge-securit...orrent-100617/
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The security risk is caused by a lethal combination of IPv6 and PPTP-based VPN services, which are very common. IPv6 is the Internet protocol that will succeed IPv4. The protocol is promoted by Windows 7 and Vista, among others, and most people are using it without even realizing it.
The technical details of the vulnerability, explained in this talk (see below), reveal that the true IP-address of users using IPv6 can be easily traced. Even worse, it seems that the Swedish Anti-piracy Bureau may already be using this flaw to gather data on ‘anonymous’ BitTorrent users.
The vulnerability is not limited to BitTorrent either. It can expose people who believe that they are hiding their real IP-address through nearly every connection.
In addition to this gaping hole in VPNs such as Ipredator and Relakks, the talk exposes several other weaknesses from a privacy point of view. Among other things, it is fairly easy to find MAC-addresses and computer names of people who use the same VPN.
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