What are zombie cookies?

Zombie cookies, also called evercookies or supercookies, are tracking files that websites use to collect user data even after users delete their browser cookies. These cookies are stored in multiple places, making them hard to remove. Even if you delete the main cookie, zombie cookies can be recreated from other sources like Flash or local storage. This lets advertisers and websites track your online activities, preferences, and personal information without your consent. Zombie cookies raise privacy concerns and have sparked discussions about stricter regulations to protect user data and online privacy.