Sygnum and Debifi Combine Bitcoin Multi‑Sig Technology With Regulated Bank Lending Services

Swiss Sygnum Bank and bitcoin-backed lending platform Debifi announced a partnership to launch MultiSYG, a Bitcoin‑native 3‑of‑5 multi‑signature lending solution that the firms say will be the first from a regulated bank to let borrowers draw fiat loans against onchain verifiable bitcoin collateral while retaining distributed key control.

The product, slated for H1 2026, aims to combine self‑sovereign custody principles with bank‑grade lending terms, flexible drawdowns and assurances against rehypothecation, the firms said. Sygnum said MultiSYG will be available to all Sygnum customers regardless of jurisdiction and will complement the bank’s existing Credit & Lending portfolio, while Debifi framed the offering as a market response to institutional demand for non‑custodial bitcoin lending; the announcement did not disclose pricing or partner integrations beyond the two firms.

FAQ 🧭

What is MultiSYG? — A 3‑of‑5 multi‑signature bitcoin lending solution from Sygnum and Debifi allowing borrowers to retain distributed key control while accessing fiat loans.
When will MultiSYG launch? — The firms said the product is targeted for launch in H1 2026, announced Oct. 24, 2025, in Zurich.
Who can use MultiSYG? — Sygnum says the service will be available to all Sygnum Bank customers irrespective of jurisdiction upon launch.
How does MultiSYG address custody concerns? — The multi‑signature escrow wallet provides onchain verifiability and a cryptographic guarantee against rehypothecation, according to Sygnum and Debifi.