Google's proposed privacy changes have been branded unlawful by a French data protection organization leading the European investigation into changes that are set to come into effect from 1 March.
Isabelle Falque-Pierrotin from the Commission Nationale de L'informatique et Des Libertes (CNIL), which is leading the Article 29 Working Party's investigation into Google's changes, said it does not believe they conform to European laws.
"Our preliminary analysis shows that Google's new policy does not meet requirements of the European Directive on Data Protection, especially regarding the information provided to data subjects," she said in the letter.
"The CNIL and the EU data protection authorities are deeply concerned about the combination of personal data across services: they have strong doubts about the lawfulness and fairness of such proceedings."
The organization urged Google to "pause" its plan to implement these changes and instead let more work be carried out on the implications for users' privacy.
But Google dismissed the concerns, claiming it had managed to reach a solution that it believes address data protection rules.
"Over the past month we have offered to meet with the CNIL on several occasions to answer any questions they might have, and that offer remains open," it said.
"We believe we've found a reasonable balance between the Working Party's recommendations: to ‘streamline and simplify' our policies while providing ‘comprehensive information' to users."
Despite Google's claims, the letter is just the latest in a long-line of high-profile organisation that have expressed concerns over its proposed changes, along with several US senators.
Rivals have also used the changes to attack Google, with Microsoft taking out ads trying to tempt users concerned with the changes to switch to its services.
This article was originally published on V3.
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Dan Worth is the news editor for V3.co.uk, having previously worked as a reporter on the site since November 2009.
Before joining V3.co.uk, Dan worked as a journalist covering communications technology, data handling and resilience in the emergency services sector on the BAPCO Journal. Prior to this, Dan studied English and History at Cardiff University followed by a post-graduate degree in journalism.
Dan's main coverage areas are telecoms, mobile operators, ISPs, broadband and wireless technologies, government technology strategy and networks.
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