CAMBRIDGE IGCSE Topic 5.3 Cyber security threats, Forms of attack Also in this topic... CAMBRIDGE IGCSE Topic 5.1 Difference between the internet and the World Wide Web CAMBRIDGE IGCSE Topic 5.1 Uniform Resource Locator (URL) CAMBRIDGE IGCSE Topic 5.1 HTTP and HTTPS CAMBRIDGE IGCSE Topic 5.3 Cyber security threats, Social engineering CAMBRIDGE IGCSE Topic 5.3 Protecting digital systems and data from threats