Coinbase Maps Bitcoin’s Quantum Risks While Safeguarding 5% of BTC

Coinbase has outlined potential quantum-computing risks to Bitcoin and says it is assessing how the network could respond as the technology develops. The concern centers on future machines that might undermine the cryptography securing exposed public keys, not an immediate threat to Bitcoin today. Coinbase reportedly holds about 5% of BTC, giving its security planning substantial stakes, but its custody measures do not address risks to Bitcoin’s wider protocol. Any lasting mitigation would require broad coordination across the network, likely through cryptographic upgrades and user migration.