Stephan Livera Podcast

Multisig Bitcoin custody for businesses with Kevin Loaec | SLP704

Dec 5, 2025
Kevin Loaec, co-founder of Wizard Sardine and a multisig expert, dives into the intricacies of self-custody for businesses. He discusses the hurdles businesses face, including regulatory issues and the inadequacies of current tools. The conversation highlights the evolution of multisig technology, risks of centralized custody, and introduces Liana Business—a solution designed for multisig setups. Key topics include role-based governance, flexible recovery paths, and the balance of security with user convenience, all crucial for ensuring safer Bitcoin custody.
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ADVICE

Make Custodians Recovery‑Only Participants

  • Make custodians recovery-only keys rather than full custodians to reduce attack incentives.
  • Rotate funds promptly if a recovery key leak is detected to prevent future activation risks.
INSIGHT

Tradeoffs Of Absolute Long Timelocks

  • Absolute long timelocks solve very-long recovery needs but add UX and migration complexity.
  • Kevin restricts absolute timelocks to business users to avoid users locking coins for decades by mistake.
ADVICE

Onboard With Guided Key Registration

  • Use guided onboarding where participants register keys by email and plug hardware devices only for confirmation.
  • Avoid entering mnemonics on computers and keep descriptor backups encrypted on physical media.
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