France's privacy watchdog CNIL has ordered WhatsApp to stop sharing user data with its parent company Facebook. According to a public notice posted on the French website, WhatsApp has a month to comply with the order. The Verge reports: The query began after WhatsApp added to its terms of service last year that it shares data with Facebook to develop targeted advertising, security measures, and to gather business intelligence. Upon investigating these claims, the CNIL ruled that while WhatsApp's intention of improving security measures was valid, the app's business intelligence reason wasn't as acceptable. After all, WhatsApp never told its users it was collecting data for business intelligence and there's no way to opt out without uninstalling the app. That violates "the fundamental freedoms of users," said the CNIL.