Privacy Boost is built for private transfers where confidentiality and auditability both matter.
Transaction details stay private, while viewing keys and selective disclosure give authorized parties a way to review them when needed.
More than 100,000 active @ether_fi Cash cards and 300,000+ accounts run on OP Mainnet.
Teams can put real products into production and prove transaction volume before deciding whether a dedicated chain is justified.
Case study:
Rotating npm tokens on a schedule treats a standing credential as a manageable risk. Deleting them removes the credential.
We wrote up how we did it and what broke along the way:
