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Evercookie: the browser cookie that won’t die

Geek.com reports of an open-source project that is building a JavaScript API to provide developers with very persistent cookies for user identification. So far it uses 8 mechanisms to store the user id in the browser, ranging from standard cookies to LSO and original methods such as ETags and forced cached auto-generated PNG images. Soon in a browser near you: http://samy.pl/evercookie/

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• Interest-based behavioural targeting cookies: What do they know about you?
• You’ve been de-Phormed, have a nice day :)
• What is… Behavioural Targeting? Part I: Contextual, Re-targeting and Interest-based targeting

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Interest-based behavioural targeting cookies: What do they know about you?

Online privacy is now a hot a topic as it ever was since the introduction of cookies in the early 90s. Cookies enable a website to recall that your browser is the same browser that visited it on previous sessions, and over time this effectively lets the web sites build a list of interest topics your browser has visited. This becomes the source for Interest-based behavioural targeting advertising, a step on from contextual-ads you are most certainly used to see. But do you know what they know? Find out if your cookies are revealing your real passions.

List of sites showing what information advertisers have based on your cookies:

http://www.google.com/ads/preferences
http://tags.bluekai.com/registry
http://www.safecount.net/viewyourcookiesinformation.php
http://www.tradedoubler.com/uk-en/legal/targeting.html

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Related posts:

• What is… Behavioural Targeting? Part I: Contextual, Re-targeting and Interest-based targeting
• Evercookie: the browser cookie that won’t die
• You’ve been de-Phormed, have a nice day :)

Posted in advertising, online media | No Comments »