Evercookies can be used to track your online activity, even after you have cleared your browser's cookies. This can be a major privacy concern, as it means that websites can continue to collect data about you without your knowledge or consent.
What is Evercookie?
An Evercookie is a type of persistent tracking technology. It is incredibly difficult to remove from your browser. Unlike standard cookies that you can easily clear from your browser settings, an Evercookie is designed to regenerate itself. If you delete it from one location, it uses data stored in other places on your computer to bring itself back to life. So, it's also called "zombie cookie".
Key Features of Evercookies
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Self-Regenerating: Its primary feature is its ability to "respawn" or recreate itself after being deleted. If even one copy of its data remains in any of its storage locations, it can restore all other deleted versions.
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Difficult to Remove: Because it stores data in many and less obvious places, standard "clear cookies" functions in browsers are often ineffective against it.
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Cross-Browser Tracking: Some of the storage methods used by Evercookies, like Flash Local Shared Objects, can be shared between different browsers on the same computer. This means it can potentially track your activity even if you switch from one browser to another.
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Bypasses Privacy Controls: Tools like your browser's incognito or private mode do not stop an Evercookie, as it utilizes storage mechanisms that persist even in these modes.
Use Cases of Evercookies
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Fraud detection: Evercookies can be used to track users who are trying to commit fraud, such as by creating multiple accounts or by using stolen credit cards.
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Personalization: Evercookies can remember a user's preferences, such as their language or their shopping cart contents.
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Analytics: Evercookies can track user behavior on a website, which can help website owners to improve their website.
FAQ
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How do I get rid of Evercookie?
It is difficult to completely remove an evercookie from a computer. However, there are a few things you can do to reduce the risk of being tracked by evercookies:
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Clear your browser's cookies and cache regularly.
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Install a browser extension that blocks cookies and other tracking technologies.
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Be careful about the websites you visit and the links you click.
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Is a browser cookie safe?
Browser cookies are generally safe. However, they can be used to track your online activity, which can be a privacy concern. You can control how your browser handles cookies by adjusting your browser's settings. -
What happens if I disable cookies in my browser?
If you disable cookies in your browser, you may not be able to use some websites or features. For example, you may not be able to log in to some websites or you may not be able to see personalized content.
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