Third-party cookies have fuelled the growth of digital advertising since as far back as the mid-nineties, giving advertisers the unique ability to track people across the web and build robust user profiles based on their browsing behaviour.
These tiny pieces of code are actually small text files with an ID tag and are created when someone visits a website. They are then stored on the user’s browser and are used when that user revisits that same website to remember their preferences, such as login name, themes and other customisation.
