Some VPNs offer “split tunneling,” which routes all traffic through your VPN except specific services or sites that you allow. For example, you might want to send your Web traffic through your VPN but stream Netflix on your fast, domestic connection. But these types of rules are complicated to implement without also leaking other important information, and we didn’t assess how effective they were in practice.
The ongoing saga of Facebook data harvesting and the implementation of the GDPR has personal privacy online as a hot topic once again. One common method for protecting yourself online is the use of a Virtual Private Network — or VPN for short. It allows you to safely send information when using public networks via a group of networked computers and faraway servers. Not all VPNs are the same, however, so we took some time to find the best VPN services.
CyberGhost is transparent about its company structure, posting photos and bios on its website of everyone from the CEO to the cleaning lady, and privacy fanatics will like that the company is based in Romania rather than the U.S. But CyberGhost's full-service subscription price is among the most expensive month by month — it's far better to just pay for a year at a time.
The provider offers two strong encryption ciphers: AES-256-CBC and AES-256-GCM. Almost every VPN in the marketplace uses the former, which makes Surfshark the only service to offer the latter. The difference between the two is of something called “chosen ciphertext attacks”. AES-256-CBC uses a secure Message Authentication Code (MAC), along with the AES algorithm. Conversely, AES-256-GCM has built-in authentication codes, which makes the process a whole lot faster!
If you’re worried about which is more secure for business use, the answer is clearly a VPN — you can force all network traffic on the system through it. However, if you just want an encrypted connection to browse the web with from public Wi-Fi networks in coffee shops and airports, a VPN and SSH server both have strong encryption that will serve you well.
Hardware-based VPNs tend to be less vulnerable than software implementations because their chip-based OSs are more lightweight (i.e., they have fewer features to exploit than general-purpose OSs). Also, because they don't sit on everyone's desktop, they're less used and understood, although exploits on them aren't unheard of. For example, security researchers recently discovered several security holes in Cisco's VPN concentrators. Make sure you subscribe to your VPN vendor's security update mailing list and promptly apply all security patches.
For a VPN that services telecommuters, consider using a vendor that offers a firewall with separate zones for work and home machines that share an Internet connection. As Figure 2 shows, the firewall's trusted zone gives the telecommuter's work PC access to the Internet and VPN access to the corporate LAN, and an untrusted zone allows a personal machine access to the Internet only. SonicWALL and WatchGuard currently offer such firewalls, which aren't much more expensive than home routers and eliminate worries about the other computers on your telecommuters' home LANs. However, multizone home firewalls don't eliminate the need to continually verify the security of remote VPN clients.
Setting up ExpressVPN and connecting to a VPN server was easy enough. Performance, when connected to the VPN server, was average at 49 Mb/s down and 16 Mb/s up, compared to our usual speeds of 125 Mb/s down and 20 Mb/s up. Netflix complained about a proxy being in use when we used the automatic configuration option, but it worked fine when we manually selected a local U.S. server. Amazon Prime Video played just fine, and our other internet tests completed without issue.
For the most part, VPN clients are the same for both Windows and macOS. But that's not always the case, and I have found marked performance differences depending on the platform. I have split out reviews of Mac VPN applications, in case you're more into fruit than windows. Note that you can skip client apps altogether and connect to the VPN service simply using your computer's network control panel. You'll still need to sign up with a VPN service, however.
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.