When Mark Zuckerberg unveiled a new “privacy-focused vision” for Facebook in March 2019, he cited the company’s global messaging service, WhatsApp, as a model. Acknowledging that “we don’t currently have a strong reputation for building privacy protective services,” the Facebook CEO wrote that “I believe the future of communication will increasingly shift to private, encrypted services where people can be confident what they say to each other stays secure and their messages and content won’t stick around forever. This is the future I hope we will help bring about. We plan to build this the way we’ve developed WhatsApp.”
Zuckerberg’s vision centered on WhatsApp’s signature feature, which he said the company was planning to apply to Instagram and Facebook Messenger: end-to-end encryption, which converts all messages into an unreadable format that is only unlocked when they reach their intended destinations. WhatsApp messages are so secure, he said, that nobody else — not even the company — can read a word. As Zuckerberg had put it earlier, in testimony to the U.S. Senate in 2018, “We don’t see any of the content in WhatsApp.”
WhatsApp emphasizes this point so consistently that a flag with a similar assurance automatically appears on-screen before users send messages: “No one outside of this chat, not even WhatsApp, can read or listen to them.”
Those assurances are not true.