
← Ask a Bitcoiner 21 Questions5 sept · 43 min
He Lost $750,000 in Bitcoin. His Hardware Wallet Wasn’t Even the Problem.
<p>“The guy who moved his Bitcoin into an exchange in Australia, but his computer had been hacked. He moved the coins from the Coldcard to the exchange. The hackers were just waiting for his funds to move. They used his 2FA and they sold his 70 $750,000 worth of bitcoin.”</p><p><br></p><p>Since the Coldcard exploit, there have been a growing number of attacks on people holding Bitcoin. </p><p><br></p><p>In this full interview, Stefan Smith, a Bitcoin specialist with the Bitcoin Adviser, and I discuss how to keep your Bitcoin secure. </p><p><br></p><p>🏆 $50 worth of Bitcoin in this episode (71,000 sats) 🥳</p><p><br></p><p>🔎 There’s a hidden 12-word seed phrase in this episode. Find all 12 words + the passphrase and sweep the wallet. </p><p><br></p><p>Here’s how to do it:</p><p><br></p><ol><li>Watch the full video and look out for clues. The answer to each clue is a seed word. There are 12 clues in this video.</li><li>Follow & Subscribe to Ask a Bitcoiner 21 Questions on socials for passphrase clues.</li><li>Once you have all 12 words and the passphrase, sweep the wallet.</li></ol><p><br></p><p>Not sure how to recover a wallet? Start here Start here 👉 <a href="https://youtu.be/XoaSEvUUCmU">https://youtu.be/XoaSEvUUCmU</a></p><p><br></p><p>Find Stefan:</p><p>X: https://x.com/noufsmith</p><p>LinkedIn: Search “Stefan Smith Bitcoin” </p><p>Email: <a href="mailto:Stefan@theBitcoinAdviser.com">Stefan@theBitcoinAdviser.com</a></p><p><br></p><p>🔗 Referrals:</p><p>Orange Manufacturing GroupCustom-made and NFC-enabled Bitcoin accessories:</p><p>➤ Hardwood Signs: <a href="https://geyser.fund/project/hardwoodsigns?refId=AAB21Q">https://geyser.fund/project/hardwoodsigns?refId=AAB21Q</a></p><p>➤ Lightning Keychain: <a href="https://geyser.fund/project/lightningkeychain?refId=AAB21Q">https://geyser.fund/project/lightningkeychain?refId=AAB21Q</a></p><p>➤ SteelQR Sleeve: <a href="https://geyser.fund/project/steelqrsleeve?refId=AAB21Q">https://geyser.fund/project/steelqrsleeve?refId=AAB21Q</a></p><p>➤ SeedSigner Case: <a href="https://geyser.fund/project/seedsignercase?refId=AAB21Q">https://geyser.fund/project/seedsignercase?refId=AAB21Q</a></p><p>🌐 https://omg21btc.com/</p><p><br></p><p>🧡 Subscribe / Follow:</p><p>➤ YouTube: <a href="https://www.youtube.com/@AskaBitcoiner21Questions?sub_confirmation=1">https://www.youtube.com/@AskaBitcoiner21Questions?sub_confirmation=1</a></p><p>➤ Spotify: <a href="https://podcasters.spotify.com/pod/show/ask-a-bitcoiner-21">https://podcasters.spotify.com/pod/show/ask-a-bitcoiner-21</a></p><p>➤ Twitter (X): <a href="https://twitter.com/askabitcoiner21">https://twitter.com/askabitcoiner21</a></p><p>➤ Instagram: <a href="https://www.instagram.com/askabitcoiner21questions">https://www.instagram.com/askabitcoiner21questions</a></p><p>➤ Fountain: https://www.fountain.fm/askabitcoiner21</p><p><br></p><p>This video is for fun and educational purposes only and is neither financial nor technical advice.</p><p>Never share your seed phrase with anyone, ever. Do not reuse the same Bitcoin address.</p><p><br></p><p>Intro music was selected from Riverside’s license-free library and used in accordance with Riverside’s attribution requirements.</p><p><br></p><p>Chapters:</p><p>00:00 Coldcard Breach and Security Risks</p><p>05:03 How the Coldcard Entropy Failure Unfolded</p><p>11:20 Seed Security and the Limits of Self-Custody</p><p>16:24 Institutional Custody vs. Personal Control</p><p>18:44 Phishing Scams: Slow Down and Verify</p><p>24:23 Why Collaborative Multi-sig Matters</p><p>30:57 Single-Sig and Multi-sig Explained</p><p>35:02 Multi-sig for Recovery and Inheritance</p><p>39:49 How to Verify Communications Safely</p>