WhatsApp Encryption Now Covers All Messages - The New York Times

Tangentially, F.B.I. Lawyer Won’t Say if Data From Unlocked iPhone Is Useful (NYT)

"End-to-end encryption for WhatsApp is of particular concern to the F.B.I., considering the service’s huge subscriber base and large international footprint. With increasing amounts of communications now sent across messaging services, encrypted texts, video, photos and the like may end up being more problematic for law enforcement than locked devices. The encryption on WhatsApp will be turned on by default, so users will not be required to enable it themselves.

WhatsApp has previously clashed with law enforcement over its digital data. Last month, the federal police in Brazil arrested a Facebook executive for not turning over information from a WhatsApp account in a drug trafficking case. The executive was released."

WhatsApp Encryption Now Covers All Messages - The New York Times