United States6.4 million bitcoin have public keys already exposed.

Those coins are 30.2% of supply, the Quantum Alliance estimates.

A future quantum computer could derive a wallet’s secret key from its public key, which no current machine can.

Those coins cannot be stolen today because no existing quantum computer is powerful enough, the alliance said.

The alliance’s 9 companies are drafting shared standards, while freeze proposals face property-rights objections.

How each outlet framed it
CoinDesk
quotes a quantum-threat CEO predicting that whoever first builds a CRQC could take Satoshi's coins with government blessing

Sources: CoinDesk