It usually relies on either Internet Protocol Security (IPsec) or Secure Sockets Layer (SSL) to secure the connection. However, SSL VPNs can also be used to supply secure access to a single application, rather than an entire internal network. Some VPNs also provide Layer 2 access to the target network; these will require a tunneling protocol like PPTP (Point-to-Point Tunneling Protocol) or L2TP (Layer 2 Tunneling Protocol) running across the base IPsec connection.
Some combination of the above. Odds are, even if you’re not one of these people more often than not, you’re some mix of them depending on what you’re doing. In all of these cases, a VPN service can be helpful, whether it’s just a matter of protecting yourself when you’re out and about, whether you handle sensitive data for your job and don’t want to get fired, or you’re just covering your own ass from the MPAA.
Max Eddy is a Software Analyst, taking a critical eye to Android apps and security services. He's also PCMag's foremost authority on weather stations and digital scrapbooking software. When not polishing his tinfoil hat or plumbing the depths of the Dark Web, he can be found working to discern the 100 Best Android Apps. Prior to PCMag, Max wrote... See Full Bio
Obfuscation – Obfuscation is a key feature if you are using a VPN in China, schools, work networks, or anywhere that VPNs may be blocked. However, if you are not in a restricted network situation, obfuscation is generally not necessary and may impact performance. (See the best VPN for China guide for a great selection of VPNs with built-in obfuscation features.)
A VPN client on a remote user's computer or mobile device connects to a VPN gateway on the organization's network. The gateway typically requires the device to authenticate its identity. Then, it creates a network link back to the device that allows it to reach internal network resources -- e.g., file servers, printers and intranets -- as though the gateway is on the network locally.
We didn’t find any problems when we tested other aspects of TorGuard’s performance. Each time we checked our location via IP address, it accurately resolved to the location of a TorGuard server. Neither our true IP address nor our location was exposed when we tested for DNS leaks and IPv6 leaks. TorGuard runs its own DNS servers—a requirement for all the VPNs we tested—so the routing that happens when you go to a website isn’t released to your ISP, Google, or anyone else. And since TorGuard doesn’t support IPv6, the app disables it completely, just like IVPN.

The TorGuard Windows client was easy to install and made quick work of connecting to a VPN server, including the ability to choose a server location prior to connecting. The internet speed on our test system dropped from our usual 125 Mb/s download to 53 Mb/s, and our upload ran at 17 Mb/s compared to our usual 20 Mb/s. That’s not the best performance in our testing, but all internet services that we tested worked without a hitch, including Netflix and Amazon Prime Video.
Hands down, ExpressVPN is the number one most highly-acclaimed VPN service on the market, and it’s no secret why. With a massive amount of servers, great deals, and superior quality service, ExpressVPN blows the competition clear out of the water. In case you’re a see it to believe it kind of shopper, ExpressVPN lets you test drive the service with its 30-day money-back guarantee. Don’t like it? You’ll get your money back, no questions asked. For real.

When you're away from home or the office and you connect to the internet, you'll most often be doing so via Wi-Fi provided by your hotel or the restaurant, library, or coffee shop you're working out of in that moment. Sometimes, the Wi-Fi has a password. Other times, it will be completely open. In either case, you have no idea who else is accessing that network, and therefore, you have no idea who might be snooping on your traffic.
CyberGhost operates an ample network of more than 1,200 servers, including 20 in Australia and more than 200 in the US. It has a strong focus on unblocking streaming services like Netflix and Amazon Prime Video. It’s also popular with torrenters and has a dedicated “Torrent Anonymously” option within its apps. Plus, speeds are excellent, making it a great all-rounder. CyberGhost doesn’t log user activity or record IP addresses. Apps are available for Windows, MacOS, iOS, and Android.
In late November 2018, the Australian Parliament passed the Copyright Amendment to the Copyright Act. This amendment forces ISPs to block proxy and mirror sites—duplicates of censored torrent sites that show up after the original site is blocked—without the need for multiple court orders. Second, the new law will force search engines like Google to remove or demote links to infringing sites, as well as their proxies and mirrors.
While you're connected to a VPN, all your network traffic passes through this protected tunnel, and no one—not even your ISP—can see your traffic until it exits the tunnel from the VPN server and enters the public internet. If you make sure to only connect to websites secured with HTTPS, your data will continue to be encrypted even after it leaves the VPN.
Tip for Chrome, Firefox, and Opera users: A feature called WebRTC can, in some Web browsers, inadvertently cause your true IP address to leak out even when you’re connected via a great VPN. WebRTC assists with peer-to-peer connections, such as for video chatting, but could be exploited in some cases. You can manually disable this function in Firefox, or use an extension to block most instances of it in Chrome or Opera. For more details and instructions, check out Restore Privacy.
Kaspersky Secure Connection is one of the fastest VPNs we’ve tested to date. We recorded UK speeds of 12.13MB/s (97.04Mb/s) via FTP and 10.27MB/s (82.16 Mb/s) via HTTP and 10.5MB/s (84Mb/s) and 9.39MB/s (75.12Mb/s) respectively for FTP and HTTP. The US VPN connection was so fast that we repeatedly re-tested it in case of errors or anomalies, because it more than tripled our non-VPN’d connection speed with 9.57MB/s (76.56Mb/s) downloads over both FTP and HTTP.
The VyprVPN is among the top virtual private network apps and one of the best services in 2018. With this service, you subscribe to a risk-free world where you forget about the Internet threats and enjoy your freedom online. This best-paid VPN offers its services to over 200,000 customers with over 700 IP servers, which give you unlimited server switching.
Obfuscation – Obfuscation is a key feature if you are using a VPN in China, schools, work networks, or anywhere that VPNs may be blocked. However, if you are not in a restricted network situation, obfuscation is generally not necessary and may impact performance. (See the best VPN for China guide for a great selection of VPNs with built-in obfuscation features.)
We like that the company offers a connection kill switch feature and, for those who need it, there's an option to get a dedicated IP address. VyprVPN is a standout in their effort to provide privacy, and thwart censorship. When China began its program of deep packet VPN inspection, Golden Frog's VyperVPN service added scrambled OpenVPN packets to keep the traffic flowing. 
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