# Stacks Tests Post-Quantum Signatures With sBTC Transfer

> HelixNews · Web page: https://helixnews.one/story/1097188 · All pages for agents: https://helixnews.one/llms.txt

2 outlets covering · First listed: The Defiant, Nov 11, 2026, 10:10 AM · Read it: <https://thedefiant.io/news/blockchains/stacks-tests-post-quantum-signatures-with-sbtc-transfer>

A mainnet vault withdrawal used a Lamport one-time signature. The test does not upgrade ordinary sBTC wallets or the Bitcoin backing the token.

## Who's covering it

In the order they published:

- Nov 11, 2026, 10:06 AM: [Stacks Labs says it completed first post-quantum sBTC transfer on mainnet](<https://cryptobriefing.com/stacks-labs-post-quantum-sbtc-transfer/>) — Crypto Briefing (Specialist)
  The successful post-quantum sBTC transfer on Stacks mainnet highlights the potential for enhanced blockchain security against future quantum threats.
- Nov 11, 2026, 10:10 AM: [Stacks Tests Post-Quantum Signatures With sBTC Transfer](<https://thedefiant.io/news/blockchains/stacks-tests-post-quantum-signatures-with-sbtc-transfer>) — The Defiant (Specialist)
  A mainnet vault withdrawal used a Lamport one-time signature. The test does not upgrade ordinary sBTC wallets or the Bitcoin backing the token.