WhatsApp turns on end-to-end encryption

Facebook-owned WhatsApp has strengthened the encryption of its widely used instant messaging app, a development that in theory makes it harder for law enforcement to gain access to communications.WhatsApp's founders said Tuesday that the application now implements end-to-end encryption, which means only authorized users can decrypt messages."The idea is simple: when you send a message, the only person who can read it is the person or group chat that you send that message to," Jan Koum and B