Your seed is the foundation of your self-custody: All keys and addresses of your wallet are derived from it. Normally, your hardware wallet's random number generator creates it. But you...
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Four brands, four routes, one goal. We compare the BitBox02, Trezor Safe, Foundation Passport and Ledger on usability, security and price. By the end you will know which device fits you, and why we no longer carry the Coldcard.
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Updated 25 August 2026: On 20 August, Coinkite released firmware 5.6.1 (Mk4, Mk5) and 1.5.1Q (Q) and strongly recommends the update to all users of these models. The affected version ranges and the entropy estimates are unchanged. Coinkite has also launched an official Security Status page and a step-by-step migration guide. The formal technical review Coinkite announced has not been published yet. We have updated the figures on the outflows to the state as of 24 August. Coldcard maker Coinkite has issued a warning about a serious flaw in seed...
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