pull down to refresh

🎥 Demonstration of transferring data from NFC-equipped COLDCARD wallet MK4 to mobile | @econoalchemisttwitter.com/econoalchemist/status/1507746564994863105
23 sats \ 9 comments \ @cryptocoin 26 Mar 2022 bitcoin
related
Having trouble using NFC on the Coldcard mk4? Try tapping the backtwitter.com/rot13maxi/status/1575482505016541189
271 sats \ 0 comments \ @rijndael 1 Oct 2022 bitcoin
Turn retired Coldcards into open source SecretKeeper with custom firmware & NFC
1795 sats \ 2 comments \ @anon 5 Aug bitcoin
COLDCARD Co-Signing - enforce spending policies with hardwarecoldcard.com/docs/coldcard-cosigning/
691 sats \ 7 comments \ @k00b 17 Apr 2025 bitcoin
PSA: Advice Regarding the Coldcard Bug - Exploit - Hack - Theft
3361 sats \ 5 comments \ @BITC0IN 1 Aug bitcoin bitcoin_beginners
Advice for stackers following the Coldcard incident
326 sats \ 2 comments \ @mkmloom 6 Aug bitcoin AskSN bitcoin_beginners bitcoinplusplus
iOS wallets w/ NFC support? Experience using NFC signing devices on Android?
281 sats \ 2 comments \ @ev 22 Nov 2022 bitcoin
Caution with cold card mk4 quality control
291 sats \ 0 comments \ @elysia 6 Dec 2023 bitcoin
COLDCARD Release: Versions 5.5.1 (Mk4/Mk5) and 1.4.1Q (Q)xcancel.com/COLDCARDwallet/status/2072674581098447310
1939 sats \ 5 comments \ @hasherstacker 4 Jul bitcoin bitcoin_beginners bitdevs
How to Use Your Coldcard with a Mobile Device and Nunchuck Wallettftc.io/how-to-use-coldcard-with-a-mobile-device-and-nunchuck-wallet/
466 sats \ 0 comments \ @pablo 15 Feb 2024 bitcoin
🎥 Pay using an NFC card (offline) - LightningNFC ⚡ | @thedavidcoentwitter.com/thedavidcoen/status/1524000413359427585
336 sats \ 8 comments \ @cointastical 10 May 2022 bitcoin
Coldcard Mk2, Mk3, Mk4, Mk5, and Q Firmware Security Vulnerabilityengineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware
11.4k sats \ 23 comments \ @k00b 31 Jul security bitcoin bitdevs
Hardware wallets
2540 sats \ 24 comments \ @Thatguydude 25 Oct 2023 bitcoin
Bitcoin and NFC
1480 sats \ 24 comments \ @Rockedf 3 Feb 2024 bitcoin
Understanding The COLDCARD Mk4 Security Model and Secure Element Useblog.coinkite.com/understanding-mk4-security-model/
752 sats \ 5 comments \ @cypher_funk 16 Jan 2023 bitcoin
👀 The new version of the BULL Wallet is out!
551 sats \ 1 comment \ @BullBitcoin_ 21 Jul bitcoin
Coldcard: the technical autopsy of an entropy failurewizardsardine.com/blog/coldcard-vuln-deep-dive/
2328 sats \ 7 comments \ @k00b 11 Aug security bitcoin bitdevs
COLDCARD, CLN disclosures, zk proof of reserves - Bitcoin Optech Newsletter #416bitcoinops.org/en/newsletters/2026/07/31/
11.3k sats \ 2 comments \ @schmidty 31 Jul bitcoin
An NFC-based experiment to teach Bitcoin without tutorials or shortcu
340 sats \ 3 comments \ @bitcoinauta33700 18 Dec 2025 bitcoin
Let's crowdsource a very short guide for people who used Coldcards
3364 sats \ 26 comments \ @Scoresby 31 Jul DIY bitcoin
COLDCARD Q Firmware v1.0.0 Released
1083 sats \ 5 comments \ @IgnaciobTato 14 Mar 2024 security
When LN wallets will have natural "Tap to pay" option via NFC ?
2011 sats \ 3 comments \ @jk_14 29 May 2023 bitcoin