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Safari blocks trackers that turn your email into a tracking ID
Apple's Safari and WebKit now block connections to identity resolution services that convert email addresses into persistent tracking identifiers. This post-cookie tracking method allows third parties to collect user email addresses during login or newsletter signup and convert them into permanent tracking IDs for cross-site monitoring.
Why it matters: Practitioners managing identity and authentication systems should understand how Safari's blocking affects email-based tracking ecosystems and user tracking capabilities across their infrastructure.
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- First seen by Cybersecurity Tracker