~/talk

Business Privacy, Harder & More Valuable Than You Think

Talkat Pragma Prague 2025 · on Thursday, 2025-05-29· [privacy-and-compliance, cryptography]

Business privacy proves far harder than consumer privacy and becomes essential to unlock cross‑company tokenized workflows that claim 99% less cycle time, 20–30% less inventory, and ~50% lower admin cost. EY builds open‑source solutions — Nightfall (ZK rollup payments) and Starlight (private Solidity→ZK circuits) — funded ~$30M over eight years, using X.509 certificate identities for compliance. ZKPs are chosen over TEEs; performance has improved ~10,000× since 2018, current throughput ≈1 txn/s, now practical for financial use cases (DEXs, securities) but not yet for millions of NFTs/day.

AI-written summary · about

  1. 0:00Introduction to Paul Brody and business privacy
  2. 0:49Why business privacy is harder than consumer privacy
  3. 1:15The value of privacy in enterprise coordination
  4. 2:12How modern supply chains complicate coordination
  5. 3:12Tokenization and smart contracts for business processes
  6. 4:17Two types of privacy: Money vs. agreement terms
  7. 5:14EY’s Nightfall (ZK rollup) and Starlight (private smart contracts)
  8. 6:18Five challenges in enterprise privacy solutions
  9. 7:56Regulatory compliance and confidentiality in privacy tech
  10. 9:25Key requirements for enterprise privacy solutions
  11. 10:33Privacy challenges in supply chain traceability
  12. 11:06Four major privacy tech choices (ZKPs, MPC, HE, TEEs)
  13. 12:10Why EY chose zero-knowledge proofs (ZKPs)
  14. 13:25Evolution of Nightfall from prototype to production
  15. 14:03Early high-value use cases for private transactions
  16. 14:33Smart contracts for enforcing business agreements
  17. 15:31Future of scalable, general-purpose privacy solutions
  18. 16:11Performance improvements in ZKP technology
  19. 17:15Why EY is an Ethereum maxi firm
  20. 18:25Q&A: Other Big Four firms entering blockchain
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