145. AQA A Level SLR21 Network security threats
About this video
AQA Specification Reference
A Level 4.9.3.2
There are many threats to networked systems, one of the most serious is Malware, which is any software designed to cause harm or disruption. In this video we discuss three types of Malware: Worms, Trojans and Viruses, along with the vulnerabilities that they exploit.
Key question:
- What are viruses, trojans and worms?
00:00 Network security threats
00:06 Intro
00:11 Malware
00:29 Virus
00:39 Trojan
01:11 Worm
01:44 Vulnerabilities exploited by malware
02:47 Key question
02:55 Going beyond the specification
03:03 Malware continued
03:08 Ransomware
03:34 Spyware
03:45 Adware
04:02 Outro
Last updated: 30.10.25
