Imagine you have a castle and you want to keep invaders out. You would build a big strong wall around the castle to keep enemies from getting in.
Similarly, a firewall is like a wall for your computer or network that keeps unwanted people and programs out. It’s like a security guard who monitors who comes in and out of the castle gates.
Firewalls work by checking and controlling the traffic (data) that goes in and out of your computer or network. They also check where the traffic is coming from and going to, and whether it’s safe or not.
Internet security is all about protecting your digital castle from bad guys who want to steal your information or harm your computer. This includes things like viruses, malware, hackers, and phishing scams.
So, just like in a castle, you need strong defenses to protect your digital castle. By using firewalls and other security measures, you can protect yourself and your information from harm.