Coinkite’s Coldcard Bug Exposed Single-Sig Risk. Multi-Vendor Multisig Is the New Bitcoin Custody Baseline

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Bitcoin Magazine Coinkite’s Coldcard Bug Exposed Single-Sig Risk. Multi-Vendor Multisig Is the New Bitcoin Custody Baseline Coinkite now forces dice rolls and key-press entropy on new Coldcard seeds. The lasting lesson from the July–August 2026 thefts is not to abandon self-custody — it is to stop generating every key on one vendor. This post Coinkite’s Coldcard Bug Exposed Single-Sig Risk. Multi-Vendor Multisig Is the New Bitcoin Custody Baseline first appeared on Bitcoin Ma

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