European Union privacy watchdogs urge WhatsApp to stop sharing users’ data with Facebook. They also want Yahoo’s Marissa Mayer to come clean about recent leaks and spying allegations. WhatsApp and Yahoo will both be on the agenda when it meets for the first time next month. Privacy groups including the Electronic Frontier Foundation have criticized WhatsApp for mishandling privacy changes, and others have filed complaints with the U.S. Federal Trade Commission. The data protection watchdogs have created a new subgroup to coordinate enforcement of EU data protection law.”]