COLDCARD (@COLDCARDwallet) / X

COLDCARD

18.3K posts

COLDCARD

@COLDCARDwallet

SECURITY ADVISORY ⚠️ The best #bitcoin hardware wallet 🙌 Ultra-secure.The only dedicated air-gapped. Backup on SEEDPLATE from @Coinkite

Bitcoin

coldcard.com

Born January 1

Joined December 2017

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COLDCARD
@COLDCARDwallet
Jul 31
🚨URGENT COLDCARD SECURITY UPDATE Read carefully before acting. 👉Mk3 seed generated on 4.0.1+ without ≥50 private, independent dice rolls: begin a careful migration now. 👉Mk4/Mk5 <5.6.0 or Q <1.5.0Q: update first, generate a new seed, then migrate. blog.coinkite.com/entropy-techni…
COLDCARD
@COLDCARDwallet
Jul 31
The first post was the advisory and what users should do. This second post has the technical details: what actually went wrong, why our reviews missed it, the impact across Mk3/Mk4/Q/Mk5, and what we changed. blog.coinkite.com/entropy-techni… ( current evaluating Mk3 firmware release )
COLDCARD
@COLDCARDwallet
14h
Please treat this as urgent. Follow the advisory for your model, upgrade your device, generate a new seed, and carefully move your funds. Help spread the word, especially to people who are less online and may not see this update.
COLDCARD
@COLDCARDwallet
Jul 31
🚨URGENT COLDCARD SECURITY UPDATE Read carefully before acting. 👉Mk3 seed generated on 4.0.1+ without ≥50 private, independent dice rolls: begin a careful migration now. 👉Mk4/Mk5 <5.6.0 or Q <1.5.0Q: update first, generate a new seed, then migrate. blog.coinkite.com/entropy-techni…
COLDCARD
@COLDCARDwallet
Jul 31
🚨 COLDCARD SECURITY UPDATE [Jul 31, 9:40 EDT] Mk3 4.2.0 is now available. Affected seeds without ≥50 fair, independent, private dice rolls: 👉 Mk3 4.0.1–4.1.9 👉 Mk4/Mk5 <5.6.0 👉 Q <1.5.0Q Update first. Generate a new seed. Migrate carefully. blog.coinkite.com/entropy-techni…
COLDCARD
@COLDCARDwallet
Jul 31
🚨URGENT COLDCARD SECURITY UPDATE Read carefully before acting. 👉Mk3 seed generated on 4.0.1+ without ≥50 private, independent dice rolls: begin a careful migration now. 👉Mk4/Mk5 <5.6.0 or Q <1.5.0Q: update first, generate a new seed, then migrate. blog.coinkite.com/entropy-techni…
COLDCARD
@COLDCARDwallet
Jul 31
The first post was the advisory and what users should do. This second post has the technical details: what actually went wrong, why our reviews missed it, the impact across Mk3/Mk4/Q/Mk5, and what we changed. blog.coinkite.com/entropy-techni… ( current evaluating Mk3 firmware release )
COLDCARD
@COLDCARDwallet
Jul 30
COLDCARD Mk3 Security Advisory If you generated a seed on a Mk3 after firmware 4.0.1, your funds may be at risk. Mk4, Q and Mk5 are not affected based on our early analysis. Read the advisory and migrate carefully: blog.coinkite.com/coldcard-mk3-s…
COLDCARD
@COLDCARDwallet
Jul 30
COLDCARD Mk3 Security Advisory If you generated a seed on a Mk3 after firmware 4.0.1, your funds may be at risk. Mk4, Q and Mk5 are not affected based on our early analysis. Read the advisory and migrate carefully:
Coldcard Security Advisory
From blog.coinkite.com