# Coldcard Wallet Hack: What Happened and What to Do Now

Page: https://stenobird.com/podcast/the-bitcoin-layer-7070444/coldcard-wallet-hack-what-happened-and-what-to-do-now
Text version: https://stenobird.com/podcast/the-bitcoin-layer-7070444/coldcard-wallet-hack-what-happened-and-what-to-do-now.md
Podcast: [The Bitcoin Layer](https://stenobird.com/podcast/the-bitcoin-layer-7070444)
Published: 2026-07-31T10:00:00+00:00
Episode link: https://mysoundwise.com/soundcasts/1665708396190s
Audio file: https://cdn.simplecast.com/media/audio/transcoded/8ed6a33d-2ac9-4ae6-bdbb-334a1cbb3f52/93f29295-b98b-46ce-9822-223c512497e8/episodes/audio/group/60e60506-a4f1-40c5-a1ae-0231588aab8c/group-item/addf5f52-701f-4ca5-a384-56bd854a9a37/128_default_tc.mp3?aid=rss_feed&feed=Y2219Riv
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JSON: https://stenobird.com/v1/public/podcasts/the-bitcoin-layer-7070444/episodes/coldcard-wallet-hack-what-happened-and-what-to-do-now
Duration seconds: 1540

## Resource

In this episode, Nik and TBL's Demian Schatt cover a breaking security situation: a seed-generation vulnerability in Coldcard hardware wallets that has exposed some bitcoiners to theft, with reports of wallets being swept over the last twenty-four hours. Nik, speaking as a researcher rather than a cryptographer, explains how bitcoin seed phrases are generated, why the entropy behind a seed is what keeps it safe, and how Coldcard's default seed generation left certain users vulnerable while those who added dice-roll entropy or a passphrase are better protected. He explains why bitcoin ETF holders are not affected and why he has long favored diversified storage. The video is a call to action: check your wallet and how your seed was generated. The Bitcoin Layer and its guests do not provide investment advice.

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## Transcript

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