Foundation closed a $6.4 million funding round led by Fulgur Ventures this week. The company also began general sales of its Passport Prime hardware device after shipping pre-orders since March. The move accelerates its push to require human oversight for critical actions in AI-driven systems.
Funding Details
Foundation’s new cash infusion brings its total funding to $16.5 million. Fulgur Ventures led the latest round. The firm won’t say how it plans to spend the money beyond expanding its team. It’s the first new capital since late 2024.
What Passport Prime Actually Does
The device combines a Bitcoin hardware wallet, FIDO authentication keys, and a secrets vault with 50GB of encrypted storage. It forces physical approval for high-stakes moves like large crypto transfers. KeyOS runs the show—a Rust-based open-source microkernel OS developed over three years. The OS uses post-quantum crypto via QuantumLink, mixing ML-KEM and ChaCha20-Poly1305 encryption. No app store. No cloud connection. Just hardware and firmware.
Developer Push Underway
Foundation launched the KeyOS developer platform this month. SDKs, documentation, and command-line tools are live. A simulator lets devs test apps without the device. Cake Wallet is the first partner building a cold storage application for its one million users. The company confirmed it’s already testing the KeyOS integration. There’s no release date yet for the feature.
Available Now in Stores
Passport Prime started shipping to pre-order customers back in March. It’s available for general purchase today at the Foundation store. The company says early reviews highlight the device’s simplicity. Users must physically approve transactions with a button press. No more auto-approvals for AI tools handling their crypto.
