WhatsApp reaches deal with UK regulator over Facebook data sharing

Remember how WhatsApp vowed that it will never share user data with Facebook when Mark Zuckerberg and Co. announced the multi-billion dollar purchase of the popular chat app a few years ago? Or how Facebook told regulators that it wouldn't be possible to link WhatsApp and Facebook account? Or how Facebook then said that it'll link your WhatsApp and Facebook accounts automatically unless you opt out? All that action got Facebook into some hot waters in Europe, and the giant social network just ag...