A Straightforward Guide to Cyber Security For Small to Medium Size Business by David Marsh

Author:David Marsh
Language: eng
Format: epub
Publisher: Straightforward Publishing

Part 6

UTILISING FIREWALLS

Chapter 6

Using Firewalls to Protect Your System

Understanding Firewalls

When your computer is accessible through an internet connection or Wi-Fi network, it is susceptible to attack. However, you can restrict outside access to your computer – and the information on it – with a firewall.

What do firewalls do?

Firewalls provide protection against cyber attackers by shielding your computer or network from malicious or unnecessary network traffic. Firewalls can also prevent malicious software from accessing a computer or network via the internet. Firewalls can be configured to block data from certain locations (i.e., computer network addresses), applications, or ports while allowing relevant and necessary data through.

There are a number of firewalls to choose from and having an understanding of each type is important.

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