http://www.techradar.com/news/best-vpn-for-torrenting-our-5-top-choices

Torrents are a popular way of downloading things – legal things, and of course in some cases, not-so-legal things (of course we don’t condone any copyright- trampling activities here at TechRadar) – whereby many users share small bits of a larger file with each other to enable some potentially very fast download speeds.

Of course, the downside on the privacy front is that all these other online folks you’re sharing with can clearly see your IP address, so if you want to avoid that, obviously a VPN will ensure that your details stay private. Providing the Virtual Private Network in question supports torrents, of course.