How do you keep your Bitcoin safe when the threats come from both sophisticated hackers and criminals at your front door?

Lloyd, cryptographer and founder of Frostsnap, joins Honest Money to talk about the full picture of Bitcoin security, from multisig wallets and geographic key distribution to the physical safety measures every serious holder should think about. Drawing on his analysis of recent real world attacks, including the Coldcard exploit, Lloyd explains where hardware wallets fall short and how to design custody that holds up against both digital and physical threats.

This conversation explores why self-custody means trusting hardware and software that can be compromised, how multisig defends against home invasions, and what recent attacks reveal about verifying device integrity and entropy.

🎙️ EPISODE SUMMARY

Lloyd and Anja discuss Bitcoin security, multisig, and staying safe from both hackers and thieves.

The conversation moves from the history of physical crime against Bitcoiners, through organised crime and the wave of attacks in France, to Frostsnap’s multi device approach to securing keys. Lloyd walks through his reproduction of recent real world attacks, the technical details of the Coldcard hack, and what they mean for anyone holding their own coins.

The episode also examines the best practices that come out of these attacks, the design principles that make hardware wallets safer, and the honest question of whether self-custody has become too complex for most users, and what to do about it.

🔗 FEATURED LINKS

Frostsnap: https://frostsnap.com
Frostsnap on X: https://x.com/FrostsnapTech
Lloyd on X: https://x.com/LLFOURN

🔑 KEY TAKEAWAYS

Self-custody means trusting hardware and software that can be compromised
Multisig wallets with geographic distribution defend against home invasions
Recent attacks show why verifying device integrity and entropy matters
Hardware wallets must be designed to prevent message leaks and malicious entropy
Physical and digital security have to work together to protect your Bitcoin
Understanding real world attacks is the best guide to defending against them
Good design, not just good intentions, is what keeps custody secure

⏱️ CHAPTERS

00:00 Introduction to Bitcoin Security and Lloyd’s Background
01:07 Physical Safety in Bitcoin and Historical Crime Trends
05:08 Organised Crime and Bitcoin Attacks in France
07:47 Government Data Collection and Privacy Concerns
08:42 Frostsnap’s Approach to Multi Device Security
12:48 Real World Bitcoin Attack Analysis and Reproduction
18:13 Technical Details of the Coldcard Hack and Attack Methods
24:43 Implications for Self-Custody and Hardware Wallets
29:14 Lessons from Recent Attacks and Best Practices
37:25 Future of Hardware Wallet Security and Design Principles
43:44 Is Self-Custody Too Complex for Most Users?
56:49 The Importance of Physical and Digital Security Measures

🔗 AFFILIATE LINKS

Buy Bitcoin in Australia With a $10 Sign Up Bonus
HARDBLOCK: https://hardblock.com.au/join/honestmoney

Learn to Acquire, Secure, and Manage Your Bitcoin
MINERACKS: https://www.mineracks.com/honestmoney

Shop Signing Devices, Bitaxes, Nodes, Apparel, and More
SHOP BITCOIN AUSTRALIA: https://shopbitcoin.com.au

Collaborative Security, Inheritance Planning, and Retirement Strategies
THE BITCOIN ADVISER: https://thebitcoinadviser.com/honest-money

Reached Terminal Bitcoin? Borrow Against Your Bitcoin Without Selling
LOAN MY COINS: https://www.loanmycoins.com/honest-money

📌 ABOUT THE HONEST MONEY SHOW

The Honest Money Show explores the forces shaping our financial world, from monetary systems and personal finance to Bitcoin. Through in depth conversations with builders, thinkers, and educators, the show challenges mainstream narratives and provides practical insights into financial sovereignty.

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⚠️ DISCLAIMER

This podcast is for general information and educational purposes only and is not financial, legal, or tax advice. The views expressed by the host and guest are their own and do not represent any organisation or regulatory body. Financial markets are volatile and speculative. You should seek independent professional advice before making any financial decisions. By listening, you accept that all actions taken are your own responsibility, and neither the host, guest, nor the podcast accept liability for any loss or damage.

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