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Zach Herbert
#745: The AI Approval Layer Is Fake with Zach Herbert
- Bitcoin as safe haven in currency debasement: Central banks devaluing currencies creates favorable conditions for Bitcoin adoption; framed as a macro tailwind rather than speculation. - AI security threats and the need for containment: Modern AI models running on legacy operating systems (Windows, macOS, Linux) with massive attack surfaces. Current "approval" systems are illusory—AI already has full capability to act before asking permission. - KeyOS microkernel architecture: Foundation built a next-generation operating system with <9,000 lines of code (vs. 30+ million in Linux), using message-passing architecture, isolated memory, and hardened-derived child keys to sandbox third-party apps safely. - Ledger's technical constraints: Smart card OS (30-year-old STMicroelectronics tech) limits functionality, forces sequential app loading, and necessitates closed-source operating system and app review. E-ink screens chosen because the smart card chip cannot power modern LCD displays. - Passport Prime as platform, not just hardware wallet: Developer SDK and app ecosystem enable third parties to build native apps (Nostr signers, password managers, Bitcoin applications) without Foundation approval, mimicking iPhone's app store model. - Enterprise custody and HSM vulnerabilities: Most enterprise Bitcoin custody still relies on legacy hardware security modules, offline paper, and undocumented internal tools (e.g., iPhone apps). Approaching an era where AI will systematically discover zero-days in monolithic operating systems at scale.
#511: Zach Herbert on Building Crypto Hardware
- Foundation Devices is building open-source hardware wallets and decentralized internet devices, starting with Passport, a next-generation Bitcoin hardware wallet shipping by end of March. - Open-source hardware matters for Bitcoin because transactions are immutable and security breaches carry permanent financial consequences; auditability and transparency become critical safeguards. - Apple and Google's restrictive ecosystems create structural barriers to Bitcoin adoption and decentralized applications by controlling what software can run, limiting background processes, and extracting service revenues. - Foundation's strategy combines open-source security, air-gapped QR-code transaction signing, and compatibility with existing wallets rather than building proprietary software. - Future roadmap includes a Node product (self-hosted applications with integrated hardware wallet) and ultimately an open-source phone with Bitcoin as a core OS feature. - Institutional self-custody of Bitcoin remains distant; career risk and liability concerns drive institutions toward custodial providers despite technical feasibility.