WhatsApp emphasized that neither it nor Facebook can see users' private messages or hear their calls. WhatsApp also doesn't keep logs of who people message or call, can't see your shared location (neither can Facebook), doesn't share users' contacts with Facebook and keeps WhatsApp groups private, according to the FAQ.
The publication of the FAQ follows calls from privacy advocates, concerned users and, notably, Elon Musk, to . WhatsApp says personal messages are also protected by end-to-end encryption, but it has for years openly collected certain user data to share with Facebook. , another secure messaging app, on Tuesday said it surpassed 500 million active users. It noted that in just the last 72 hours, it gained more than 25 million new global users.
Additionally, for users who interact with Facebook's Shops commerce feature via WhatsApp, their shopping activity can be used to display related ads on Facebook and Instagram. WhatsApp says this feature is optional and that when you use it, "we will tell you in the app how your data is being shared with Facebook."
Lastly, if you find an ad on Facebook with the option to message a business through WhatsApp and then do so, Facebook could use the way you interact with that ad to show more related ads on the social platform.
WhatsApp head Will Cathcart tweeted on Friday: "With end-to-end encryption, we cannot see your private chats or calls and neither can Facebook. We're committed to this technology and committed to defending it globally."