The heart of the security a VPN provides is its encryption keys—the unique secret that all your VPN devices share. If the keys are too short, VPN data is susceptible to brute-force cracking. You can often choose the key length to use in your VPN implementation. The longer you make keys, the harder they are to break, but the trade-off is that longer keys also require more processor power for encryption and might slow packet throughput. The minimum recommended key length now is 64 bits (128 bits, if possible) for the symmetric ciphers that encrypt the data and 2048 bits for public key cryptography such as RSA. Modern desktop computers can often crack 40-bit and shorter keys, such as those that DES uses.
These services offer many ways to connect, including without the service's client software; support operating systems and devices, such as routers or set-top boxes, beyond just the "big four" operating systems (Windows, Mac, Android and iOS); have hundreds, or even thousands, of servers in dozens of countries; and generally let the user sign up and pay anonymously.
Based in Switzerland and owned by the US company “Gold Frog”, VyprVPN is quite similar to Buffered. It has quickly gained momentum in the marketplace of VPN providers. The VPN offers exceptionally fast speeds, remarkable unblocking features, and huge server database. It also offers advanced technologies, like Chameleon Technology and the famous VyprDNS.
The only downsides to Private Internet Access are that you can't select your own username — you've got to stick with an assigned random ID — and that you've occasionally got to reinstall a balky driver in Windows. (There's a button to do this.) Selecting Private Internet Access as our VPN service of choice was almost a no-brainer, but because it's based in the U.S., anyone wary of the FBI may want to consider another service.
NordVPN operates servers in over 50 countries with 12 in Asia Pacific. Torrenting is allowed on all servers. It’s on par with ExpressVPN when it comes to unblocking streaming services. It can bypass the Netflix proxy firewall in the US and Australia alike. It keeps zero logs of any kind and is based in Panama, where it is not subject to any data retention laws. NordVPN also offers special servers optimized for privacy and high-speed downloads, such as ultra-fast streaming, double hop VPN, Tor over VPN, and anti-DDoS.
Google is full of articles claiming that a VPN will prevent ISPs from gathering metadata, but unfortunately that is not true. A VPN hides the contents of your internet traffic and your location from the outside world, but you still have to rely on your ISP’s network to get there. Strictly speaking a VPN cannot prevent an ISP from logging your location, device details, and traffic volume.
CyberGhost has been around since 2011 and has come out strongly as a supporter of "civil rights, a free society, and an uncensored Internet culture." We really liked how the company specifically showcases, on their Web site, how folks normally prevented from accessing such important services as Facebook and YouTube can bring those services into their lives via a VPN.