Key TakeawaysDavid Schwartz proposed a split-control Bitcoin storage plan that divides device custody and PIN knowledge among four different people. Two relatives would each hold a hardware wallet loaded with the same 24-word recovery phrase and the same PIN. Two unrelated friends would hold only the PIN, without access to the devices or the recovery phrase. The Coldcard Flaw That Restarted the DebateThe Coldcard hardware wallet breach reportedly began with a firmware defect that produced predictable seed phrases. Every additional copy of the recovery phrase is another object that can be found, coerced, or lost, and the plan converts one point of failure into four points of trust.