Click fraud is the artificial generation of clicks on internet advertisements to increase advertising revenue, hinder business competitors or collect data. It is usually carried out by automated bots pretending to be genuine enquirers.
Glossary
Pieces of data that are stored on your computer or, more specifically, in your browser software (Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) by the websites you visit. Cookies allow you, for example, to return to a webshop page and see the product you viewed on your last visit first, or to keep products you have previously added to your shopping cart. They help websites to provide a personalised experience. Cookies are essential for the convenient functioning of the internet, but they can also be a source of security concerns, most notably in the case of 3rd party cookies (notably zombie cookies, of which multiple copies are stored in the browser and therefore "resurrect" even after deletion), which are used by marketers to track users' activity.