French data protection agency Commission Nationale de l'Informatique et des Libertés (CNIL) has reported that Google stored passwords and e-mail IDs from unsecured Wi-Fi data connections in France while collecting data for its Street View service.
CNIL revealed the information as a part of its on-going investigation into Google. CNIL is looking into the possibility of charging the company for breaching France's privacy laws.
Representatives of the agency have said that Google complied when asked on 4 June to hand over samples of the data.
Google has said that it is helping in the investigation, and will delete the data if asked.
A spokersperson for Google said: "We have reached out to the data protection authorities in the relevant countries, and are working with them to answer any questions they have. Our ultimate objective is to delete the data consistent with our legal obligations and in consultation with the appropriate authorities."