BitGo adds quantum-risk scoring tools for Bitcoin custody wallets

BitGo Holdings, Inc. (NYSE: BTGO) announced new quantum-risk management capabilities for Bitcoin wallets, introducing tools that allow institutional clients to assess and reduce quantum-related exposure across UTXO-based multi-signature wallets.

The new features include a quantum risk scoring system, a guided workflow for moving funds away from addresses with elevated key exposure, an updated coin selection method that groups UTXOs by address to limit exposure from partial spends, and updated default address-type controls. The capabilities apply to supported UTXO-based assets and multi-signature wallet configurations.

BitGo noted that practical quantum attacks against Bitcoin do not exist today, but said the tools are intended to help clients reduce exposure before quantum computing advances create operational risks. The company stated the controls are not a substitute for future Bitcoin protocol-level post-quantum signature upgrades.

"BitGo is investing in the foundation required for a post-quantum future for our clients," said Mike Belshe, CEO and co-founder of BitGo. "We believe the safest key is one whose public key has never been revealed on-chain."

Adam Back, co-founder and CEO of Blockstream, was quoted in the announcement: "Nobody has a quantum computer that can touch Bitcoin today, but that's exactly why the work should start now, while it's calm and optional rather than urgent and forced."

The announcement noted that address types such as Taproot or Pay-to-Public-Key, which expose a public key from creation, require separate remediation and are outside the scope of the new UTXO selection tool.

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