There is a security hole in WhatsApp so its really NOT peer to peer secure.
FB can intercept communications.
It was designed that way.
Protonmail is really the only true secure way of communication right now.
It was designed that way.
You Give Apps Sensitive Personal Information. Then They Tell Facebook.
https://www.wsj.com/articles/you-give-apps-sensitive-personal-information-then-they-tell-facebook-11550851636
Flo Health Inc.’s Flo Period & Ovulation Tracker, which claims 25 million active users, told Facebook when a user was having her period or informed the app of an intention to get pregnant, the tests showed...
Now Ms. Berg said she may delete the app. “I think it’s incredibly dishonest of them that they’re just lying to their users especially when it comes to something so sensitive,” she said.
...Software development kits—or SDKs—are common inside of apps, and Facebook’s are among the most widely distributed. Any information shared with an app may also be shared with the maker of the SDK, many of which collect data on users.
Oh no, not Facebook!
Some lowly dev that done the deed.
FB pure like fresh snow.