Casa CEO: 233k BTC Saved After Coldcard Exploit

Casa CEO Nick Neuman recently pointed to onchain data following a Coldcard firmware exploit as clear proof that self custody makes the Bitcoin network stronger. Figures from Checkonchain show that in the days after the hack, about two thousand BTC were stolen, but a massive two hundred thirty three thousand BTC left long term wallets to safer locations.

Galaxy Research tracked the confirmed losses from the Coldcard entropy flaw, while the wider community scrambled to protect their funds. Neuman noted that user conversations revealed many holders shifted from single key setups to multisig setups. Others simply removed vulnerable Coldcard devices from their existing keysets.

Neuman contrasted this decentralized response with a traditional centralized exchange hack. If a single custodian held all those funds, the outcome would look very different and much more damaging. Because holders controlled their own keys, attackers had to target wallets one by one, limiting total losses and giving the market time to react.

Traders and long term holders should watch how hardware wallet manufacturers respond to this incident with firmware updates and better transparency. The event highlights why keeping keys in your own hands remains the gold standard for protecting digital assets against unexpected technical failures.