# Coldcard Wallets Compromised

URL: /show/this-week-in-bitcoin/116/
> An urgent warning for COLDCARD users: Coinkite says funds tied to seeds generated on some Mk3 devices may be at risk, and we examine why other hardware wallets could be next.

- Show: [This Week In Bitcoin](/show/this-week-in-bitcoin/)
- Episode: 116
- Date: 2026-07-31
- Hosts: chris
- Duration: 00:13:02
- Audio: https://feeds.fountain.fm/40huHEEF6JMPGYctMuUI/items/tf71VbthBtjLXk9vksTZ/files/AUDIO---DEFAULT---2d5ee6a1-53b4-40dc-9b08-5a85213c0fe2.mp3


Transcripts: [application/x-subrip](https://feeds.fountain.fm/40huHEEF6JMPGYctMuUI/items/tf71VbthBtjLXk9vksTZ/files/AUDIO---TRANSCRIPT---DEFAULT---SRT.srt)




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**Show Notes**

* [Mk3 Security Advisory | COINKITE Blog](https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/)
* [Bitcoin News on X: "BITCOIN CORE DEVELOPER: “SORRY, THIS IS THE TIME TO PANIC”](https://x.com/BitcoinNewsCom/status/2082964557069246544)
* [Nick Neuman on X: "It sounds like Mk4, Q, and Mk5 are also vulnerable in a different way than Mk3. ](https://x.com/Nneuman/status/2082977839654093290)
* [Zero-Knowledge Goof (Loop master general) on X: "MK4s are vulnerable but are millions of times harder to steal from. ](https://x.com/LLFOURN/status/2082990000896147942)