From the Product Page [0]: "AWS Wickr encrypts every message, call, and file with a proprietary, 256-bit end-to-end encryption (E2EE) protocol. No one but inten

From the Product Page [0]: "AWS Wickr encrypts every message, call, and file with a proprietary, 256-bit end-to-end encryption (E2EE) protocol. No one but intended recipients can decrypt them, reducing the risk of person-in-the-middle (PitM) attacks." Why do we need proprietary protocols for this?! [0] https://aws.amazon.com/wickr/ https://aws.amazon.com/wickr/