Computer Science

a system that filters network traffic to protect against unauthorised flows of data in or out of the network

settings that control what actions a user is allowed to perform on a network

Network security

Internet fundamentals

How data travels across the internet

Protocols

Network models

Hosting services

Web technologies

Threats to networks

In this unit pupils will explore how data travels across the internet. They will explore how protocols define communication between devices and the purpose of common network protocols. They will investigate the risks to networks and the methods that can be used to protect a network.

The internet and web technologies

to protect data, devices, and users from threats

What is the main reason for having network security?

It reduces the risk and damage caused by threats like phishing or malware.

It’s not important for users in large businesses.

Why is network security important for individuals and small businesses?

What is the name of a system that filters network traffic to block unauthorised access?

software improvements to fix vulnerabilities

What is a common threat that network security aims to prevent?

Arrange these steps for setting up user privileges:

What do we call a technique that manipulates people into giving away confidential information?

use the information to access the network

Arrange these steps in a typical social engineering attack:

manipulating people into giving away information

an attempt to access a network unlawfully

Which is most likely to be used in a malware attack?

a program that locks files and asks for payment

a phone call pretending to be from IT support

an email with a fake link to a bank website

Which of these is NOT a form of social engineering?

This lesson will be removed by end of Summer Term 2025.

Network security

Lesson outcome

This lesson will be removed by end of Summer Term 2025.