Purpose
Cryptography gives users the ability to communicate, store and send information even in the presence of bad actors. It is used to protect messages, identities, and economic value. With NIST finalising new post‑quantum standards while classical algorithms still secure billions of devices, this board bridges theory and practice. Discuss findings that help the community understand why certain primitives matter, how they can fail, and what it takes to deploy them safely at scale.

Purpose
Breakthroughs in quantum hardware, error correction, and algorithms determine when today’s cryptography might falter, and open doors to new applications in chemistry, optimisation, and AI. This category is for discussing on those advances, translating lab milestones into concrete timelines so researchers and engineers can plan migrations and innovations with clear path.

Purpose
Large‑scale quantum computers will eventually break the ECDSA, Ed25519, and Schnorr signatures that underpin most public blockchains today. This category exists to discuss how ledgers, wallets, and smart‑contract platforms can stay trustless, permissionless, and censorship‑resistant in a post‑quantum world, balancing cryptographic soundness with real‑world incentives and governance constraints.