Foundation Launches Universal Ethereum Signer in Beta, First on Passport Hardware
Boston, MA, November 12th, 2026, FinanceWire
Developed by Ledger cofounder Nicolas Bacca, the app runs on KeyOS, Foundation’s open source operating system that lets independent developers build apps for Passport.
Foundation today announced the beta launch of the Universal Ethereum Signer on Passport, Foundation’s Human Authority Hardware device. Developed by Ledger cofounder Nicolas Bacca, now CEO of ZKnox, with the work funded by an Ethereum Foundation grant to ZKnox, the app lets users review and sign Ethereum transactions and messages on dedicated open source hardware, keeping their private keys off their phone or computer.
Passport was chosen as the app’s first hardware platform because developers can build on KeyOS without asking Foundation’s permission. Developers can write the soft...
