This broad term encompasses all types of software intended to disrupt, compromise, attack or otherwise interfere with the normal operation of computing devices and services. There are many examples of malware (malicious software), from keyloggers and other spyware, to backdoors, viruses, worms, adware and ransomware. Malware developers are generally known as ‘hackers’ and can act in coordinated groups, or as ‘lone sharks’. Most malware is developed with a specific goal in mind, and that goal is usually the extraction of money from targeted organisations or computer users.