VPN

A VPN (virtual private network) is a program that allows a computer to securely send and receive data through a 'middle-man' server. All data transferred passes though the middle server, if used properly they can be a great security measure. It should be noted that most trackers do not allow browsing of their website through VPNs, as they generally get abused by cheaters and invite sellers wishing to hide their IP addresses. Using a VPN to torrent however is generally allowed and usually advised as an extra measure of security.

When/Why to use
Note: If you're interested in having same same privacy/security as a VPN but being able to download/upload to private trackers very fast, you may be interested in a seedbox.

As mentioned, they are a great way of keeping anonymity. If a swarm has the IP addresses connected to it logged, the IP of the VPN will be logged instead of the users. If the rights holder contacts the VPN company, a good company will have no logs so will not be able to help them track down the infringer.

Not all VPN providers get rid of their logs, almost all "free" VPNs keep the logs and wont hesitate to hand over your data and thus don't do much in the way of protecting you. There are many VPNs that care about their customers however they generally cost a small monthly fee.

Popular VPN services

 * Anonine
 * BTGuard
 * Private Internet Access (PIA)
 * TorGuard
 * TorrentPrivacy