What Is a VPN? A Complete Guide to Virtual Private Networks

When was the last time you connected to a public Wi-Fi network? If you didn’t use a VPN, your personal or business data may have been exposed. In today’s digital-first world, understanding what a VPN is and how it works is essential for security leaders, cybersecurity specialists, and everyday users alike.

A Virtual Private Network (VPN) is a tool that encrypts internet traffic and masks your IP address, creating a secure “tunnel” between your device and the online services you use. It is one of the most widely used cybersecurity measures, protecting sensitive information from hackers, advertisers, and even state-sponsored surveillance.

Let’s dive into what VPNs are, how they work, their benefits, limitations, and why every professional and organization should integrate them into their security stack.

Defining VPNs in Simple Terms

What Does VPN Stand For?

VPN stands for Virtual Private Network. The “virtual” part means it ...