Virtual private networks (VPNs)

In this video, we're going to

discuss how virtual private networks,

or VPNs, add security to your network.

When you connect to the internet,

your internet service provider receives

your network's requests and

forwards it to the correct destination server.

But your internet requests

include your private information.

That means if the traffic gets intercepted,

someone could potentially connect your internet activity

with your physical location

and your personal information.

This includes some information

that you want to keep private,

like bank accounts and credit card numbers.

A virtual private network,

also known as a VPN,

is a network security service that changes

your public IP address and hides

your virtual location so that you can keep your data

private when you're using a public

network like the internet.

VPNs also encrypt your data as it

travels across the internet to preserve confidentiality.

A VPN service performs

encapsulation on your data in transit.

Encapsulation is a process performed

by a VPN service that protects

your data by wrapping

sensitive data in other data packets.

Previously, you learned how the MAC and IP address of

the destination device is contained

in the header and footer of a data packet.

This is a security threat because it shows

the IP and virtual location of your private network.

You could secure a data packet by encrypting

it to make sure your information can't be deciphered,

but then network routers won't be able to read

the IP and MAC address to know where to send it to.

This means you won't be able to connect to

the internet site or the service that you want.

Encapsulation solves this problem

while still maintaining your privacy.

VPN services encrypt your data packets and

encapsulate them in other data packets

that the routers can read.

This allows your network requests

to reach their destination,

but still encrypts your personal data

so it's unreadable while in transit.

A VPN also uses an encrypted tunnel

between your device and the VPN server.

The encryption is unhackable without a cryptographic key,

so no one can access your data.

VPN services are simple and offer

significant protection while you're on the internet.

With a VPN,

you have the added assurance that your data is encrypted, and

your IP address and

virtual location are unreadable to malicious actors.

Revision #1
Created 29 June 2023 05:13:10 by naruzkurai
Updated 3 July 2023 10:29:21 by naruzkurai