Coinbase Preps Post-Quantum Custody for $250B Held for BlackRock After Lindell Flags MPC Blind Spot

Coinbase is quietly engineering a post-quantum custody architecture for roughly $250 billion in institutional assets it holds for BlackRock and others. Ad Ad Why Bitcoin’s Quantum Fix Could Break Today’s Custody Model Today, Coinbase’s institutional stack runs on multi-party computation (MPC). Under MPC, private key shares stay split across multiple parties. No single machine ever