What are zombie cookies?

• A. They recreate the cookies you delete from backups on your machine or externally.
• B. They block cookies from being stored.
• C. They are cookies stored only in memory and vanish when the browser closes.
• D. They are cookies that only store login credentials.

Answer: (A)

Zombie cookies persist by storing tracking data in places other than the browser’s normal cookie storage and then using that data to recreate the cookie after you’ve tried to delete it. They can live in alternate storage like Flash Local Shared Objects or other persistence mechanisms, and even be restored from backups or server-side data, so deleting the cookies in your browser doesn’t actually remove the tracking. That’s why this description fits best: the cookies you delete can be recreated from backups or external storage, keeping the tracking alive. This concept highlights a privacy concern because it undermines your control over what data is stored about you.