“Swisscom has never released data to the US authorities, he assured the paper. Information is only released in response to requests from the Swiss police request on the basis of a court order. However, Schloter estimated that just 10 to 15 per cent of data linked to all Swiss internet users is actually stored in Switzerland. The rest is stored in data centres abroad, ‘mainly in the United States, via Google, Facebook or Twitter’. Meanwhile one in four Swiss internet users said they would change their online behaviour following revelations of far-reaching US surveillance of personal data.”
http://www.swissinfo.ch/eng/swiss_news/Swisscom_boss_pledges_data_is_safe_.html?cid=36345804