Encryption Has Never Been More Essential—or Threatened

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As we communicate more digitally, governments encroach more on our privacy. End-to-end encryption cannot be taken for granted.

FIVE YEARS AGO today, WhatsApp completed our roll out of end-to-end encryption, which provides people all over the world with the ability to communicate privately and securely. This was a technical achievement decades in the making, a vision first imagined by Stanford mathematicians Whit Diffie and Martin Hellman, who in 1975 developed the underlying cryptography we rely on today.