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Airgapped security. Seamless signing. nunchuk_io + COLDCARD is a powerful combo for anyone serious about #Bitcoin self-custody.

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COLDCARD

64,953 subscribers

11,445 просмотров • 1 год назад •via X (Twitter)

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Bitcoin self-custody made simple. COLDCARD + @BullBitcoin_ = serious security with a simple flow. We’re giving away a COLDCARD Q so you can try it yourself. To enter: - Like - Repost - Comment why you’re bullish on Bitcoin 👇
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Bitcoin self-custody made simple. COLDCARD + @BullBitcoin_ = serious security with a simple flow. We’re giving away a COLDCARD Q so you can try it yourself. To enter: - Like - Repost - Comment why you’re bullish on Bitcoin 👇

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Self-custody shouldn’t feel difficult. COLDCARD keeps Bitcoin security simple without sacrificing advanced features. Easy to use, Hard to outgrow. We’re giving away a COLDCARD Q! To enter: • Like this post • Repost • Comment, why self-custody is a non-negotiable
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Self-custody shouldn’t feel difficult. COLDCARD keeps Bitcoin security simple without sacrificing advanced features. Easy to use, Hard to outgrow. We’re giving away a COLDCARD Q! To enter: • Like this post • Repost • Comment, why self-custody is a non-negotiable

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New flow unlocked. ⚡ COLDCARD + BULLBITCOIN.COM = a new air-gapped signing flow: 🔹 Import your wallet 🔹 Sign airgapped with BBQR 🔹 Broadcast straight from your phone Air-gapped self-custody, made simple. 🔐
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New flow unlocked. ⚡ COLDCARD + BULLBITCOIN.COM = a new air-gapped signing flow: 🔹 Import your wallet 🔹 Sign airgapped with BBQR 🔹 Broadcast straight from your phone Air-gapped self-custody, made simple. 🔐

COLDCARD

21,103 просмотров • 10 месяцев назад

The difference between buying Bitcoin and owning Bitcoin is self-custody. We're giving away a COLDCARD Q to help someone take that step. 🔐 To enter: - Like - Repost - Comment your favorite thing about the COLDCARD Q.
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The difference between buying Bitcoin and owning Bitcoin is self-custody. We're giving away a COLDCARD Q to help someone take that step. 🔐 To enter: - Like - Repost - Comment your favorite thing about the COLDCARD Q.

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The COLDCARD Q is built for Bitcoiners. Clean QR signing, airgapped security, and a focus on simplicity. We’re giving one away. To enter: • Like 👍 • Repost 🔁 • Comment why you want a Q 👇
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The COLDCARD Q is built for Bitcoiners. Clean QR signing, airgapped security, and a focus on simplicity. We’re giving one away. To enter: • Like 👍 • Repost 🔁 • Comment why you want a Q 👇

COLDCARD

24,280 просмотров • 3 месяцев назад

Important security update for anyone using a COLDCARD. A serious vulnerability has been disclosed involving the randomness used by some COLDCARD devices when generating Bitcoin seeds. If you use one, move your bitcoin to a new seed generated elsewhere.
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Important security update for anyone using a COLDCARD. A serious vulnerability has been disclosed involving the randomness used by some COLDCARD devices when generating Bitcoin seeds. If you use one, move your bitcoin to a new seed generated elsewhere.

Saifedean Ammous

92,716 просмотров • 27 дней назад

The Bitcoin agent key can now live in a COLDCARD Mk4/Mk5 in HSM mode. Even if the host machine running your agent is fully compromised, the signing key stays isolated in hardware. The attacker gets nothing useful. Bitcoin agents with bounded authority. Now with HSM-grade key security.
1:35

The Bitcoin agent key can now live in a COLDCARD Mk4/Mk5 in HSM mode. Even if the host machine running your agent is fully compromised, the signing key stays isolated in hardware. The attacker gets nothing useful. Bitcoin agents with bounded authority. Now with HSM-grade key security.

nunchuk_io

40,050 просмотров • 4 месяцев назад

If your hardware only works with one app, that’s not self-custody. COLDCARD lets you build the setup that fits you. We’re giving away a COLDCARD Q to help someone upgrade their #Bitcoin security. To enter: - Like - Repost - Comment why you want to win a COLDCARD Q
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If your hardware only works with one app, that’s not self-custody. COLDCARD lets you build the setup that fits you. We’re giving away a COLDCARD Q to help someone upgrade their #Bitcoin security. To enter: - Like - Repost - Comment why you want to win a COLDCARD Q

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THE STARTING BLOCK: Is Bitcoin in self-custody under threat after the Coldcard exploit? Casa CTO Jameson Lopp offers some sage wisdom: "The freedom of the protocol means people can choose whatever security model they want. They can choose convenience or security." 📺👇

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The COLDCARD Hack Was Bitcoin’s 9/11 The COLDCARD exploit was an emperor-has-no-clothes moment for Bitcoin. In this episode of the Hell Money Podcast, Casey Casey and Erin Redwing Erin Redwing break down what happened, how AI may have changed the balance between attackers and defenders, and what the fallout exposed about Bitcoin security and culture. “Don’t trust, verify” is one of Bitcoin’s core principles — but over time, heuristics like Bitcoin-only, open source, self-custody, and trusted developers became ways of deciding what to trust instead of actually verifying. So what happens when those heuristics fail? TIMESTAMPS 0:00 COLDCARD bug exploit explained 4:00 Did the attacker use AI? 8:10 Bitcoin Red Team 14:53 AI, eclipse season, and what breaks next 16:48 A 9/11 moment for open source and self-custody 23:39 AI defense for open source software 29:19 The crisis for Bitcoin self-custody 30:54 What does it actually mean to be a sovereign individual? 34:26 Self custody is worth fighting for 39:50 The cultural coddling of COLDCARD 45:43 “Strong opinions, weakly held” found dead 48:15 Coinkite’s development practices and the warning signs 56:59 Outro
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The COLDCARD Hack Was Bitcoin’s 9/11 The COLDCARD exploit was an emperor-has-no-clothes moment for Bitcoin. In this episode of the Hell Money Podcast, Casey Casey and Erin Redwing Erin Redwing break down what happened, how AI may have changed the balance between attackers and defenders, and what the fallout exposed about Bitcoin security and culture. “Don’t trust, verify” is one of Bitcoin’s core principles — but over time, heuristics like Bitcoin-only, open source, self-custody, and trusted developers became ways of deciding what to trust instead of actually verifying. So what happens when those heuristics fail? TIMESTAMPS 0:00 COLDCARD bug exploit explained 4:00 Did the attacker use AI? 8:10 Bitcoin Red Team 14:53 AI, eclipse season, and what breaks next 16:48 A 9/11 moment for open source and self-custody 23:39 AI defense for open source software 29:19 The crisis for Bitcoin self-custody 30:54 What does it actually mean to be a sovereign individual? 34:26 Self custody is worth fighting for 39:50 The cultural coddling of COLDCARD 45:43 “Strong opinions, weakly held” found dead 48:15 Coinkite’s development practices and the warning signs 56:59 Outro

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Self-custody isn’t just buying a hardware wallet. It’s using it and understanding how it actually works. We’re giving away a COLDCARD to help someone upgrade their self-custody. 🎁 To enter: 🔸Like 🔸Repost 🔸Comment one COLDCARD feature you want to learn more about. 🔐
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Self-custody isn’t just buying a hardware wallet. It’s using it and understanding how it actually works. We’re giving away a COLDCARD to help someone upgrade their self-custody. 🎁 To enter: 🔸Like 🔸Repost 🔸Comment one COLDCARD feature you want to learn more about. 🔐

COLDCARD

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The COLDCARD Mk5 is here. 🔥🔥🔥 Big Screen, Fantastic Keypad, Fast NFC, Backwards Compatible for seamless upgrade. Quantum Bitcoin Awesomeness
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The COLDCARD Mk5 is here. 🔥🔥🔥 Big Screen, Fantastic Keypad, Fast NFC, Backwards Compatible for seamless upgrade. Quantum Bitcoin Awesomeness

COLDCARD

157,429 просмотров • 5 месяцев назад

Coldcard users please be warned about this serious security vulnerability - quick video explainer with a practical mitigation step
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Coldcard users please be warned about this serious security vulnerability - quick video explainer with a practical mitigation step

Stephan Livera

27,256 просмотров • 1 месяц назад

"You screw up one thing, the wrong one thing, and it's toast." Marty Bent and James O'Beirne on the COLDCARD vulnerability, what it means for self-custody, and why you should be reaching out to anyone you've ever recommended a COLDCARD to.
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"You screw up one thing, the wrong one thing, and it's toast." Marty Bent and James O'Beirne on the COLDCARD vulnerability, what it means for self-custody, and why you should be reaching out to anyone you've ever recommended a COLDCARD to.

TFTC

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