BitGo rolled out quantum risk controls for Bitcoin wallets, led by a Quantum Risk Score that flags which addresses have public keys already exposed on-chain.

Exposed public keys are the weak point a future quantum computer could target. Alongside guided address remediation and safer UTXO defaults, the score lets institutions migrate funds before any such threat exists. BitGo is among the first major custodians to ship these tools.

Glassnode estimates about 6.04M BTC, roughly 30% of supply, already sits at addresses with exposed public keys, though no practical quantum attack is possible today.