How VPNs use tunneling and encryption

VPNs are great tools for protecting your online
privacy, but how do they actually accomplish that? Let’s look at two key VPN concepts: tunneling
and encryption. When you visit a website, your computer sends
a request to a server, and the server responds by sending the content you asked for back
to you. If you go online without a VPN, it’s kind
of like sending a postcard. Your computer’s request is the postcard,
and your internet service provider is the mailman. Let’s say you’re writing a postcard to
Cindy. You’re asking Cindy for pictures of cats. If all goes according to plan, Cindy will
send back pictures of cats. Your mailman—and the nosy people he passes
along his route—can see that you are writing to Cindy asking her for pictures of cats. Similarly, your internet service provider—and
any third-party snoops—can see what sites you’re visiting and sometimes even what
content you’re looking at. So much for your privacy. Now, let’s look at how it works if we add
one layer of VPN protection: tunneling. Whan a VPN uses tunneling, it encapsulates
your data inside other data. That way it’s harder for third parties to
access. In our mail metaphor, that’s like sealing
your postcard inside an envelope addressed to a mail-forwarding center. Your mailman delivers your envelope to this
mail-forwarding center. Someone there opens the envelope before sending
your postcard to your recipient, Cindy. Cindy then sends her response back to the
mail-forwarding center, which they put in an envelope and send back to you. However, tunneling alone isn’t enough to
protect your privacy. There are still ways for people to see your
personal data when it’s being tunneled. That’s why a good VPN doesn’t just use
tunneling—it also uses encryption. Encryption makes it so that only the intended
recipients can read a message. Think of encryption like a lock with two keys. You have one key, and your VPN has the other
key. Before you send your postcard to the VPN to
forward on to Cindy, you lock it up inside a box with your key. Then you hand the box to your mailman to deliver
to the VPN. No matter how nosey he or others are, they
can’t unlock the box to see the postcard inside. When he delivers the box to the VPN, they
use their key to open it. And if it’s a VPN that really cares about
your privacy, they empty the box’s contents into a mail-sorting system that anonymizes
your request for cat pictures—that way the VPN company won’t be able to track whom
you’re communicating with or the contents of your communication. Your cat picture request to Cindy? It stays your business. Cindy will get the postcard from the VPN,
send back the cat pictures, and the VPN’s mail sorting system makes sure you get them
back in a nice box with a lock that only you can open. While the VPN’s encryption process may seem
complicated, it’s actually incredibly efficient and happens in the blink of an eye. It protects your data, whether it’s cat pictures,
or something more sensitive like financial or medical information. So when it comes to keeping your digital life
secure and private, don’t leave your data exposed for the world to see—try ExpressVPN. By using both tunneling and encryption, ExpressVPN
offers you top-of-the-line protection on all your devices. You’ll stay secure wherever, whenever.

40 thoughts on “How VPNs use tunneling and encryption

  1. Thanks to ExpressVPN, I can freely break through the Chinese government's network firewall anytime, anywhere, truly embrace the Internet!

  2. I love using ExpressVPN and been using for over a year now but can you please add more servers in NZ? and when I connect to NZ servers why it shows "Servers Australia" and when I check my ip it shows NZ but most of the search engine results are from AUS instead of NZ and when I log in to Apple ID it shows my ID logged in from NSW instead of NZ. you need to figure these things out. NordVPN NZ servers are way better but IM stuck with you guys because I have just bought another subscription.

  3. I couldnt access Western Union in Vietnam, the government doesnt allow it. I installed Express VPN and bingo, I was able to login and transfer money. Great test.

  4. ive used so many different vpns over the last 8 yrs and the ONLY one that i have NOT had issues with is Express, i swear on my kids life..they all were ok till they werent , this one i have on recurring payment because i never have to worry about it .

  5. Let's say you're sending lesbian biker bondage images to Steve, he in turn sends back gay midget communist snuff films to you, all with the security and privacy of a good VPN 🙂

  6. I subscribed to express, i was told its the best, plus have the app. as a victim of sexual assault and not wanting anyone to hack my phone. it is helpful. plus having my firestick to watch apps it helps

  7. Need a complete guide on What is VPN Encryption and How it Works?

  8. If you're really Paranoid then just use a Virtual Machine and DuckDuckGo with Express VPN and Connect your VM to a Whonix Gateway or TOR.

  9. Great!! best possible explained too much good .Continue your job and explain total networking in this concept proud to see you.

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