Attackers had to crack wallets one by one. In response, Bitcoiners moved orders of magnitude more coins into multisig and away from single-key setups — the opposite of what a custodian breach would have produced.

The theft of $100 million from Coldcard hardware wallet owners stands out because it hurt people who did everything right.

Attackers had to crack wallets one by one. In response, Bitcoiners moved orders of magnitude more coins into multisig and away from single-key setups — the opposite of what a…