How does a VPN work?

How does a VPN work?
This diagram below shows how we access the internet with and without VPNs
A VPN, or Virtual Private Network, is a technology that creates a secure, encrypted
connection over a less secure network, such as the public internet.
The primary purpose of a VPN is to provide privacy and security to data and communications
A VPN acts as a tunnel through which the encrypted data goes from one location
to another.
Any external party cannot see the data transferring

A VPN works in 4 steps:

Step 1 – Establish a secure tunnel between our device and the VPN server.
Step 2 – Encrypt the data transmitted.
Step 3 – Mask our IP address, so it appears as if our internet activity is coming
from the VPN server.
Step 4- Our internet traffic is routed through the VPN server.

Advantages of a VPN:
Privacy
Anonymity
Security
Encryption
Masking the original IP address

Disadvantages of a VPN:
VPN blocking
Slow down connections
Trust in VPN provider

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Source: LinkedIn

Credits: Mr. Aditya Shelar