VPN stands for “Virtual Private Network”, which in English means ‘make your computer act like it’s somewhere else’. In the case of businesses and advanced home users, this is extremely useful: You can connect to your office or home network and access data, files, etc as if you were plugged in directly, all while sitting on Old Orchard Beach enjoying your favorite carnival food. But ‘VPN’ services are now commonly bundled with antivirus and other security services, and this has a totally different meaning. I’m going to discuss these “home VPN” solutions, and what exactly they are going to do for you.
A VPN will route your traffic to somewhere else securely. Hey… that sounds like a good thing, why wouldn’t I want that??? Well, let’s say you want to transfer some money on Big Corporate Bank’s website, which is hosted on a server housed in Dallas Texas. Fearing for your safety, you’ve purchased NotRun antivirus, which comes with NotRun VPN service, which securely routes your data to it’s server in New York City. So instead of you connecting from Portland, Maine to Dallas, Texas, your data is routed from Portland, to NYC in a secure and encrypted method, then transferred across the public internet from NYC to Dallas. “Wait, so my data isn’t securely routed over the VPN to my bank?” No, at some point your data is being routed across the public internet just like it would without a VPN. Your data is likely protected by TLS encryption if the address bar shows ‘https://’ or or lock symbol in the address bar, so it’s not as if the data is being sent in plaintext and open to sniffers, but there are potential vulnerabilities to TLS that a VPN can solve in certain scenarios.
So what’s the point? Well, a VPN can make it harder to intercept secure data transmissions at the endpoint, for example over a public WiFi hotspot at an airport. What proof do you have that “Portland Free Wifi” is actually being offered by the airport, and not by John with a laptop in the concourse, harvesting data? You don’t know, so it’s easy to fall vulnerable in these cases. So using a VPN service when using insecure networks is a way to secure against SOME common hacking methods.
It can also provide privacy, since instead of the websites you visit getting YOUR ip address, they’ll get the IP address of the VPN as a visitor. So if you don’t want Pawtery Barn N’ Bowls to know that you have been looking at getting a birthday present for your Golden Retriever, a VPN will prevent them from seeing 24.123.22.189 in Portland Maine accessed the site. This hardly increases privacy in any meaningful way, since cookies and other trackers can easily reveal your identity (or the identity of your computer/browsing habits) without even needing your public ip address, so again, this hardly improves your privacy either.
It can allow you to access content you’re not supposed to access. Say you want to watch some wacky tv gameshow that you became addicted to while traveling in Japan. You can use a VPN to connect to a Japanese endpoint, so that the tv website will think you’re living in Tokyo, and show you last weeks episode, instead of blocking you since you live in America, and wouldn’t understand it anyways.
Another common claimed benefit is that a VPN can prevent your Internet Service Provider (ISP) from spying on you, or slowing down competing traffic from streaming services. While this is true on a technical level, there are several reasons why a VPN is likely causing more issues than it’s helping. First off, most ISP’s aren’t blocking streaming services, and even if they are, there’s no guarantee that a VPN is going to provide a faster or more reliable connection to your streaming service of choice. Many home users now have internet service plans with speeds of 200, 400, and even 1,000mbps of download throughput. A VPN is going to dramatically limit the speeds you’ll get, down to likely 150mbps or less, with an emphasis on less. It will also add latency to your connection, so while trying to load your favorite news site, those 50 other sites loading ads and trackers in the background are going to take that much longer to load and connect. These are not insurmountable problems, or inherently bad speeds, however it’s worse than what you’ll get directly from your ISP. Most reports of “I can stream shows better over VpnHyperExpress” are anecdotal, and can often be attributed to the different route traffic is taking when going through your VPN. For example, connecting directly from Maine to a streaming center in Sacramento, California might route you through Chicago, Illinois which is having bandwidth issues when you’re trying to watch your favorite show. Connecting to VpnHyperExpress in New York City might instead route your traffic through the center of the US, like Nashville, Tennessee. So the improvement isn’t from the VPN hiding TVTubeDelux from ComGreedy ISP, the improvement is from going a different route to your destination service.
So VPN’s are a tool akin to a double edged sword. They can cut through compromised “free” WiFi network hacks, but they’ll also cut your internet speed down by at least half. They have their place, but using them while you’re at home provides minimal benefits that are often times not worth the negatives experienced. Speak to an experienced technician at Aces IT Support LLC to help you reach your network goals, whether that be increasing your network security, availability, or speed.