First of all a VPN (Virtual Private Network), as defined by Wikipedia: "A VPN provides varying levels of security so that traffic sent through the VPN connection stays isolated from other computers on the intermediate network, either through the use of a dedicated connection from one "end" of the VPN to the other, or through encryption. VPNs can connect individual users to a remote network or connect multiple networks together. For example, users may use a VPN to connect to their work computer terminal from home and access their email, files, images, etc. Through VPNs, users are able to access resources on remote networks, such as files, printers, databases, or internal websites. VPN remote users get the impression of being directly connected to the central network via a point-to-point link." Essentially a VPN service offers an encrypted tunnel to another computer, which then connects out to the open Internet. A free option I'm using right now: http://www.vpnbook.com It's a donation-based VPN that's faster than the one from TPB. What to look for in selecting a VPN: read their privacy statement and terms of service. Specifically read on their logging practices and location of the company and their servers. Avoid servers in countries that require data retention (logging). Good countries are Switzerland, Sweden, Romania, and others. FOREWARNED: A VPN is good for hiding from those pesky copyright industry notices. A VPN does not mean you are entirely anonymous. In fact with unlimited national budgets; NSA working with writers of closed-source binaries (such as Apple and MS); working with BIOS chip makers; etc. Then you may never assume that any connection to the Internet is ever anonymous. "Anonymous" is a word that's thrown out there a lot, but it's a unicorn and does not exist. If your life depends on it, use a distant open WiFi (only once) on a wiped laptop using a live Linux distribution CD. None of you here should have that issue, but if you live in Iran et al. then that is an issue. There are some amazing paid services and one of the best of them all is Cloud VPN. Another good paid service I have experience with is Anonine. Preferably use services that accept BitCoin. To set up VPNbook service: 1. Download and install OpenVPN Windows GUI: http://openvpn.se/download.html2. Download the UDP config file and certificate: http://www.vpnbook.com/free-openvpn-account/vpnbook-udp53.zip3. Unpack the zip in %ProgramFiles%\OpenVPN\config (%ProgramFiles(x86)%\OpenVPN\config on 64-bit systems)4. Right-click OpenVPN in the system tray and select "connect" login: freeopenvpnpass: J8hfCiu6W -or- You can use PPTP which is built into Windows. It doesn't use the extra SSL certificate layer but it's good enough for file sharing. 1. In the Windows search bar type in "Networking and Sharing" and click Network and Sharing Center once it appears.2. Click "Set up a new connection or network"3. Click "Connect to a workplace"4. Click "Use my Internet connection"5. for the Internet address type in euro1.vpnbook.com and then click "next".6. User name: pptp -- password: 9jHbfKiN To connect to it, in your system tray click on the network icon and a small window should appear listing your VPN connection(s). Looks like the list you get when connecting to wireless networks. When connected, Internet traffic will be tunneled through the VPN. IMPORTANT: There is a common security flaw however. If for some reason (comp returning from sleep can do this) you disconnect from the VPN and the torrent is still running, your real IP will enter the swarm. This Torrentfreak article lists various 3rd-party programs that can solve this: http://torrentfreak.com/how-to-make-vpns-even-more-secure-120419/ It goes without saying that you should keep your computer as secure as possible. PCWorld rigorously tests anti-malware software against a malware "zoo" as well as subjecting them to new, 0-day, viruses. For paid solution, G-DATA is at the top. For a free full-feature AV (I define "full feature" as live file and network scanning plus behavior detection) Avira Free and Panda Cloud rank highly. Be safe out there.