Every time you connect to Wi-Fi, open a website, or send a file to another device, information travels across a network. Most of the time, this happens without us thinking about it. But how do we know that the information is reaching the right destination and that unauthorised users cannot access the systems involved?

This is where network security becomes important.

For beginners interested in cybersecurity, learning network security is a practical way to understand how devices communicate, where risks can occur, and how organisations protect their digital infrastructure.

What Is Network Security?

Network security refers to the policies, technologies, and practices used to protect computer networks from unauthorised access, misuse, and disruption.

It includes more than installing a firewall.…