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Third-party cookies have got to go


The W3C Technical Architecture Group explains how third-party cookies reduce users’ privacy and why they must be removed from the web. This blog post introduces the latest TAG finding, Third-party cookies must be removed.

They can be helpful for use cases like login and single sign-on, or putting shopping choices into a cart — but they can also be used to invisibly track your browsing activity across sites for surveillance or ad-targeting purposes. Furthermore, tracking and subsequent data collection and brokerage can support micro-targeting of political messages, which can have a detrimental impact on society, as identified by Privacy International and other organizations. We’ve been working with Chrome’s Privacy Sandbox team(as well as others in the W3C community) for several years, trying to help them create better approaches for the things that third-party cookies do.

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