BitGo Is Protecting Institutional BTC Wallets from Quantum Risks

BitGo Rolls Out Quantum Defense Tools for Institutional Bitcoin

@BitGo has officially launched a suite of security tools designed to assess and reduce quantum computing risks across institutional UTXO-based $BTC wallets. The rollout centers on a patent-pending method for grouping and prioritizing transaction outputs to minimize public key exposure, hardening multi-signature architectures against potential future decryption threats.

The move positions BitGo at the forefront of a growing push by custodians and wallet providers to get ahead of quantum risks before network-level protections are in place. Crypto companies are moving to secure their wallet and custody offerings against a future quantum computing threat, aiming to upgrade user-facing infrastructure faster than blockchains can change their core protocols. The shift reflects a growing view that network-level upgrades to blockchains like Bitcoin could take years, leaving wallets exposed in the meantime.

The initiative is not BitGo's first step in this direction. Earlier this year, BitGo and Silence Laboratories announced a strategic collaboration to develop quantum-safe multi-party computation (MPC) wallet infrastructure for institutional digital asset custody, completing what the companies described as the first post-quantum transaction simulation by a regulated custodian. That infrastructure uses Silence Laboratories' post-quantum MPC protocol based on ML-DSA, the digital signature algorithm standardized by the National Institute of Standards and Technology in FIPS 204.

The Scale of the Vulnerability

BitGo's latest tools directly address a specific and well-documented exposure in the Bitcoin network. A Coinbase advisory council analysis identified approximately seven million Bitcoin that could be particularly vulnerable to future quantum attacks. The 7 million BTC figure captures coins held in address types where public keys are already visible, either because they were explicitly exposed in legacy formats or because address reuse made them visible during transactions.

While a cryptographically relevant quantum computer does not exist today, recent research has underscored the need for digital asset infrastructure providers to evaluate cryptographic agility, key management, and migration readiness before quantum-capable threats become operational. Proposed protocol-level fixes include BIP-360 and BIP-361, which seek quantum-resistant transactions and a migration away from older signature schemes. In the meantime, BitGo's toolset offers institutions a way to reduce exposure within their existing wallet infrastructure, without waiting for consensus changes at the Bitcoin base layer.

Mike Belshe, CEO and co-founder of BitGo, has stated that "Quantum computing has moved from theoretical discussion to an infrastructure planning priority for the digital asset industry."

Sources
BitGo and Silence Laboratories Complete First Post-Quantum MPC Transaction Simulation (BusinessWire)
Quantum computing risk puts 7 million BTC at stake (CoinDesk)
Crypto Firms Race to Quantum-Proof Wallets (Decrypt)