Morning Edition · Sunday, July 5, 2026Published at 6:32 AM EDT · New York

Privacy Layers Push to Make Confidential Transactions the Default, Not the Exception

Miden and Aztec are releasing designs that keep transaction data private by default while allowing selective disclosure, reframing confidentiality as a requirement for serious on-chain use.

Two of the more technically ambitious privacy projects are arguing, in parallel, that public blockchains cannot serve institutions or ordinary users until confidentiality is built in rather than added afterward. Miden's case for practical p…