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Gmail users exposed as Google removes ad personalization firewall

A privacy policy shift may now allow Google to use sensitive app data for targeted advertising.

October 24, 2026•1 min read•Based on reporting by Ars Technica

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Google has modified its privacy policy to alter how the company handles sensitive user information. Previously, the company maintained a strict boundary, stating that content from specific applications—including Photos, Gmail, and Drive—would not be used to power personalized advertisements.

Following an update issued on October 16, that explicit restriction has been removed. The new language introduces ambiguity, potentially allowing Google to leverage data from these private services for advertising purposes if that information is shared with other Google products.

What it means

This policy shift arrives as Google expands its AI capabilities. In early 2026, the company launched Personal Intelligence, a feature that lets users grant Google AI products access to data from various apps to provide better context. By linking these services, the company may now have a technical path to use previously protected personal data to inform its advertising engine.

Sources

https://arstechnica.com/gadgets/2026/10/updated-google-privacy-policy-says-your-gmail-might-be-used-for-advertising/

This article was written and illustrated with AI assistance from the reporting credited above, and reviewed against our editorial & AI policy. Facts come only from the linked sources. Spotted an error? Tell us.

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