Cold card hacking has spurred a revolution in self-storage security

Last week's large-scale hacking incident involving Coldcard hardware wallets has triggered a fundamental shift in the Bitcoin self-custody security paradigm. A flaw included in the March 2021 firmware update for Coldcard wallets, manufactured by Coinkite, remained undetected for five years before attackers exploited it to launch three separate attacks. According to Galaxy Research, approximately 1,600 BTC, totaling over $100 million, was stolen from around 7,300 addresses. At the time of the incident, Swan CEO Corey Klippsten was attending a wedding in Paris