Nope. COLDCARD uses secure elements and a much different design. https://blog.coinkite.com/understanding-mk4-security-model/

Reply to this note

Please Login to reply.

Discussion

Thanks so are you saying the MK4 and Q use the same security architecture?

And while on the topic, where can I read about your thoughts on Dark Skippy and anti-exfil. Is there a reason you don’t use it?

Worth reading the article.

I did, and I appreciate the detailed explanation, yet from my limited technical understanding of dark skippy and cryptography/code in general, I cannot decipher whether the security architecture of the MK4 mitigates for it or not, albeit it is clear that there is incredible security built in to the device.

That said, I also don’t see anything in the article referencing the security architecture of the Coldcard Q, which is why I asked if it shares the same architecture as the MK4? Is there an article about the Q, and/or specifically about your thoughts on dark skippy/anti exfil?

I checked the website again and don’t see mention of Bluetooth so assume Q doesn’t use it, which I am happy about given this latest article 😅

Q&Mk4 share the same design, they are sufficiently secured against darkskippy exfill type of attacks

Been a fan of COLDCARD since the OG days