What is it?
A firewall is a security barrier between a computer, or a network of computers, and the internet (outside world). It can be hardware or software which prevents unwanted or unsafe connectivity. Sometimes a firewall can keep a computer user from doing legitimate tasks on the internet, however generally it can be updated to allow access.
How does it work?
A firewall is a computer's or a network's first line of defence to the outside digital world.
Why is it useful?
Unfortunately, the digital environment is full of people and bots trying to infect or get unauthorised access to your computer.
What do you need to keep in mind about your child and firewalls?
Because firewalls are protective, it is a good idea to discuss with your child that your computer's firewall should not be compromised in any way.