That Blue Square Thing

AQA Computer Science GCSE

July 2019: the AQA CompSci area is almost complete. Most of the content for units 3-6 is now up and there's quite a lot of Unit 7 material. There's still some work to do, particularly on Paper 1 units, but it's getting there.

Cyber Security - Malicious code

Malicious code is computer code written to damage a system, to steal data or to be intrusive in some way. It is generally called malware.

The four types of malware you need to know about are:

Note that in some ways the effects of each of these can be similar - viruses, trojans and spyware can all be used to steal data, for example. The key difference is in terms of how they get their way into a computer system in the first place.

PDF iconMalware slides - intro slides from class

PDF iconManaging Malware - slides illustrating ways in which malware can be managed

PDF iconMalware notes - textbook double page spread

PDF iconTable to print - if you need a framework for note taking

Malware Examples

It's helpful to read about some real world examples of security issues caused by malware:

Hacking is an area that will be covered by longer exam questions on paper 2 as it falls within the Unit 7 - Ethics section of the syllabus.