1/ Today, Privy powers: → 75M+ accounts in 180+ countries → 85M+ monthly transactions → 500M+ total RPC calls At this scale, secure key management is foundational. Here's why and how Privy's architecture is built differently from MPC.

2/ Privy combines Trusted Execution Environments (TEEs) with key sharding to keep keys safe, performant, and flexible to use. The system is designed for defense in depth: 1️⃣ Every signature happens inside an attested secure environment 2️⃣ No key is ever stored whole

3/ Here’s how Privy’s model compares to an MPC-only setup across five key dimensions.

4/ Privy chose this approach based on threat modeling and practical considerations: → Hardware-backed isolation (TEEs) → Redundancy via key sharding (no single point of failure) → Real-world usability (low latency, flexible policies)

5/ By combining TEEs with the same secret-sharing model used by 1Password, Cloudflare, and Ledger, Privy delivers: 1️⃣ Fast, secure signatures 2️⃣ Fine-grained policy control (e.g. device/session-based approvals)

6/ Whether you’re building for payments, trading, or social, Privy’s architecture keeps wallets secure, fast, and usable. Learn more in our deep dive 👇