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Exclusive-Top Google Scientist Says EU Data Measures Pose Privacy Risk for Users

Google says the European Commission’s anonymization plan could let AI tools re-identify users in less than two hours, according to its red team.

  • On Wednesday, Sergei Vassilvitskii, a distinguished scientist at Google, meets EU regulators to warn that a proposal requiring search data sharing with rivals like OpenAI risks exposing users' private information.
  • The European Commission has utilized the Digital Markets Act to curb Big Tech's power in recent years, though Google officials characterized the current data-sharing mandates as regulatory overreach.
  • Warning that the Commission's anonymization methods are insufficient, Vassilvitskii noted, "our red team managed to re-identify users in less than two hours" in exclusive comments to Reuters.
  • Failure to comply with final mandates could result in penalties reaching 10 per cent of Google's global annual revenue, with regulators set to determine specific measures by July 27.
  • The European Commission will finalize the proposal in the coming weeks, while Vassilvitskii urged officials to "establish the right guardrails and protect Europeans from privacy harm.
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In the dispute between Google and the EU about the disclosure of search engine data, the US company warns against data protection risks. The EU Commission's proposed method of anonymisation is not enough to protect the privacy of Europeans, Google researcher Sergei Vassilvitskii said. Employees of the company could have re-identified users in the data sets in less than two hours, Vassilvitskii told the news agency Reuters.The Google expert is sc…

·Vienna, Austria
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The HinduThe Hindu
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Top Google scientist says EU data measures pose privacy risk for users

A top Google scientist sent a warning to ⁠EU antitrust regulators that its proposal requiring the company to share search engine data with rivals such as OpenAI risked exposing users’ private information

·India
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Chamber of Progress broke the news on Tuesday, May 5, 2026.
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