What is cyber-security?
see p. 93
What you need to know •
Why we need cyber-security
•
What a Denial of Service Attack (DoS) is.
Cyber-security is important because we are sharing more information through our digital devices. Having secure data is important for individuals, organisations and governments.
Policies
+ =
+
Cyber attacks take place for a range of reasons:
Technology
DoS attacks
The system is flooded with more requests than it can handle
R
Attackers target a network or website
• • • • •
A
Most cyber-security attacks can be prevented by having up-to-date anti-virus software on your device
Security from internal and external threats
=
Procedures
FT
Cyber-security
Fun/amusement To steal data/information Financial gain To cause disruption To spy
The system cannot handle that many requests and therefore goes offline
D
This is best prevented using a firewall, as this can control the amount of network traffic that has access to the network/website at any given time.
Revise it!
Remember it!
Create a revision mind map that covers:
•
Anti-virus software needs to be kept up to date in order to identify the latest viruses.
•
A firewall helps control the traffic going in/out of a network and therefore reduces the risk of a DoS attack.
•
What cyber-security is.
•
Why we need cyber-security including reference to a recent cyber attack on a well-known business.
•
How a DoS attack works.
42
Revision Guide
Original material © Cambridge University Press 2022. This material is not final and is subject to further changes prior to publication.
