Sygnum Bank and Debifi Unveil MultiSYG: First Bank-Backed Non-Custodial Bitcoin Loan Platform

Swiss digital asset bank Sygnum Bank has joined forces with Bitcoin lending startup Debifi to launch MultiSYG, a groundbreaking loan platform set to debut in the first half of 2026. Marketed as the first bank-backed non-custodial Bitcoin loan service, MultiSYG enables borrowers to maintain partial control of their BTC holdings while accessing regulated banking-grade loan products.

Targeting institutions and high-net-worth individuals, the initiative addresses long-standing concerns about rehypothecation, a common financial practice where lenders reuse client collateral for other trades. In contrast, MultiSYG’s structure offers a secure, transparent, and verifiable system designed to uphold on-chain proof of reserves and eliminate the risks of centralized custody seen in past crypto lending failures such as BlockFi and Celsius.

According to Debifi CEO Max Kei, borrowers should never have to “trust a custodian blindly,” emphasizing the growing demand for non-custodial lending solutions in the digital asset market. Through MultiSYG, BTC collateral is stored in a multi-signature wallet shared between Sygnum, the borrower, and independent signers, with any transaction requiring at least three approvals. This setup ensures borrowers can verify their holdings at all times while preventing asset misuse.

Pascal Eberle, Sygnum’s Bitcoin and MultiSYG initiative lead, described the platform as a fusion of security and accessibility: “Borrowers can hold their own keys and still benefit from regulated loan terms, flexible drawdowns, and competitive rates.”

As the global crypto finance landscape matures, Sygnum and Debifi’s partnership marks a pivotal step toward transparent, trust-minimized Bitcoin lending, offering a safer and more compliant bridge between traditional banking and decentralized finance (DeFi).