In 2021, Tone Vays said ColdCard was both the most and least secure hardware wallet: highly secure if users generated entropy with dice, but risky due to a flaw

BWB News TV • 2026-08-05 11:46 UTC • By Billy Odell Tucker-Robinson

In 2021, Tone Vays said ColdCard was both the most and least secure hardware wallet: highly secure if users generated entropy with dice, but risky due to a flaw in the device’s native random number process.

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