FILE – This Feb. 19, 2014, file photo, shows WhatsApp and Facebook app icons on a smartphone in New York. WhatsApp says on Tuesday, April 5, 2016, it’s now using a powerful form of encryption to protect the security of photos, videos, group chats and voice calls in addition to text messages sent by more than a billion users around the globe. (ANSA/AP Photo/Patrick Sison, File)
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