# Why the Path to Quantum Resistance Runs Uphill for Bitcoin Wallet Makers

- URL: https://talkfuse.com/story/why-the-path-to-quantum-resistance-runs-uphill-for-bitcoin-wallet-makers/
- Published: 2026-11-12T20:36:03+00:00
- Updated: 2026-11-12T21:35:40+00:00
- Original publisher: Decrypt
- Original article: https://decrypt.co/383201/why-path-quantum-resistance-runs-uphill-bitcoin-wallet
- Topics: Business, Crypto

## Key points

- SHRINCS offers a choice between safer, larger signatures and smaller, stateful ones.
- Reusing stateful signatures could expose funds to theft.
- Wallet devices and Bitcoin both need upgrades for quantum protection.

## Summary

Bitcoin wallet makers face new security and usability challenges if the network adopts post-quantum signatures. Trezor CTO Tomáš Sušánka says the proposed SHRINCS scheme includes compact signatures that require careful tracking, creating a risk that users or wallet software could accidentally reuse them and expose funds to theft.

SHRINCS also offers larger stateless signatures that can be reused safely, though they may be slower and affect transaction fees. Trezor is considering making these the default and placing the more efficient stateful option behind advanced settings; its state-tracking challenge includes keeping two devices with the same recovery seed in sync. Sušánka says hardware devices will also need post-quantum protection for firmware and authentication, and Trezor is shipping the quantum-ready Safe 7, while Bitcoin itself must upgrade before transactions are quantum-secure.

---
Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.