Mark recently wrote a letter discussing his focus on installing end to end encryption of private messages between a user on Instagram, WhatsApp, Messenger and Facebook. What people don't understand is end to end encryption does not mean privacy.

Longtime cypherpunk David Chaum, who is known for his invention of Digicash and mentioned inthe Bitcoin whitepaper decided to call Mark out on what true privacy meant and how he intends to bring his latest invention Elixxir to the world.

Elixxir digital payments platform will not only offer end to end encryption for users but will obscure metadata from the transaction.

https://bitcoinexchangeguide.com/david-chaums-elixxir-blockchain-launches-betanet-of-the-metadata-privacy-protecting-platform/