Bitcoin Q&A: Hardware wallets and attack surface




Can you give a basic introduction to hardware wallets? Why are bitcoin “wallets” more like keychains? How do we balance ease of use and security? What are possible ways to attack a hardware wallet? Why should you broadcast transactions through your own full node?

See the documentation and support pages of various hardware wallets for more information:

Trezor –
Ledger Nano S –
Ledger Blue –
KeepKey –

These questions are from the March and (rescheduled) April monthly Patreon Q&A sessions, as well as ‘The Internet of Money’ tour in Dublin, Ireland, which took place on March 31st, May 5th, and May 23rd 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron:

Watch the full event talk here:

RELATED:
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Secure, tiered storage system –
Setting up secure storage devices –
What is a private key? –
How do mneomonic seeds work? –
Using paper wallets –
Wallet design and mass adoption –
Cryptographic primitives –
Public keys vs. addresses –
Re-using addresses –
Coin selection and privacy –
Multi-signature and distributed storage –
Nonces, mining, and quantum computing –
Software distribution security –
Protocol development security –
Geopolitics and state-sponsored attacks –
How to get people to care about security –
Honest nodes and consensus –
Why running a node is important –

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

Follow on Twitter: @aantonop
Website:

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

THE INTERNET OF MONEY, v1:

[NEW] THE INTERNET OF MONEY, v2:

MASTERING BITCOIN:

[NEW] MASTERING BITCOIN, 2nd Edition:

Translations of MASTERING BITCOIN:

Subscribe to the channel to learn more about Bitcoin & open blockchains!

Music: “Unbounded” by Orfan (
Outro Graphics: Phneep (
Outro Art: Rock Barcellos (

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