China just leapfrogged into the quantum age. With a live 504-qubit quantum computer and a 1,000km QKD network already securing 500+ state institutions, “Q-Day” isn’t theory anymore—it’s now operational reality. The RSA/ECDSA wall? Crumbling fast. ⏳

🧵 Here’s what that means for blockchain

Legacy cryptography is already being harvested. Every signature. Every exposed public key. Quantum platforms like Tianyan-504 are now active. “Harvest now, decrypt later” isn’t paranoia—it’s current policy.

Cold wallets are no longer cold. Public keys = exposure. If your address has been reused, it’s a quantum time bomb.

Blockchains must go post-quantum. Fast. Ethereum is exploring PQC. But patchwork cryptography ≠ resilience. What we need is an architecture shift.

Noris Protocol is building the only decentralized security layer designed from day zero for a post-quantum world:

✅ PQC-native infrastructure
✅ dPoSec: Proof-of-Security consensus
✅ Swarm AI for real-time threat detection
✅ Self-healing mesh for L1s, dApps, DePINs

This isn’t just cybersecurity. It’s survival.

The era of quantum insecurity has begun. The only safe path forward is decentralized trust that can’t be broken—even by 1 million qubits.