A new cryptographic protocol is solving multisig’s two biggest problems: high fees and low privacy. The FROST (Flexible Round-Optimized Schnorr Threshold signatures) method moves the logic of requiring multiple signatures from clunky, on-chain Bitcoin scripts into the cryptography itself.

On the blockchain, a transaction from a FROST-secured vault appears identical to a simple, single-signature payment. This eliminates the “loudness” of current multisig, where complex spending conditions are publicly visible to anyone scanning a block explorer.

According to the founders of Frostsnap on Ungovernable Misfits, the shift also fundamentally changes recovery. Traditional multisig requires users to safeguard a separate digital “descriptor” file listing all public keys. Lose that file, and your coins are irretrievable even if you have the signing keys. With FROST, any threshold of physical keys can regenerate the entire wallet independently.

Lloyd Fournier, Ungovernable Misfits:

- With normal multi-sig, you have to keep around three keys on three different devices and you would have to keep a digital backup of the descriptor.

- If you have two out of the three keys but lose the third one, you actually lose the money.

The primary trade-off is increased coordination complexity during the signing process, which happens off-chain. For the user, the result is a vault that doesn’t advertise its own existence and pays lower fees - privacy and efficiency gained through mathematics, not just better software.

Nick Farrow, Ungovernable Misfits:

- It is very elegant mathematics that lets you make a multi-signature through mathematics as opposed to bitcoin script.

- The more we thought about the advantages in things like privacy and transaction fees, the more we saw the potential.