Coldcard

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

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 Magazine and is written by Juan Galt .

Bitcoin MagazineBitcoin MagazineJuan Galt26 Aug

Trezor, Onekey, Bitbox Sales Spike Amid Coldcard Crisis; Security Models Evolve

The Coldcard crisis has also tested hardware wallet manufacturers’ abilities to deal with sharply increased sales, as instead of giving up on self-custody, many Bitcoiners rushed to new devices while wallet teams prepared for the new AI-powered (in)security reality. Of the 13 hardware wallet manufacturers Bitcoin.com News contacted for comment, Trezor, Bitbox, and Onekey confirmed […]

Bitcoin.com NewsBitcoin.com NewsLinas Kmieliauskas26 Aug