Answer:
it refers to the generation of bogus clicks, either for financial gain or to attack rivals by draining their online ad budget
Step-by-step explanation:
A plugin can be regarded as piece of software which serve as an add-on to a web browser, it provides the browser with additional functionality. It's functionality give room to a web browser so that the web can display additional content that was not designed to display originally. It should be noted that plug-in refers to the generation of bogus clicks, either for financial gain or to attack rivals by draining their online ad budget