Do passphrases protect against leaks or compromises of mnemonic seed words? Why are brain wallets usually insecure? Why should you not "roll your own crypto" and promote creative schemes that deviate from the standards (like BIP39), without at least getting peer review and testing from other developers, cryptographers, or security researchers? See the documentation and support pages of various hardware wallets for more information: Trezor - https://doc.satoshilabs.com/trezor-faq/overview.html https://blog.trezor.io/using-advanced-recovery-on-trezor-4af0eb53c3bb Ledger Nano S - https://support.ledgerwallet.com/hc/en-us/articles/360000613793-Initialize-your-device Ledger Blue - https://support.ledgerwallet.com/hc/en-us/articles/360005835414-Initialize-your-device KeepKey - https://help.keepkey.com/start-here/initialize-your-keepkey https://help.keepkey.com/how-to-guides/how-to-recover-your-keepkey On the topic of inheritance and estate planning, see: https://youtu.be/4g8rO_queMw These questions are from the August monthly Patreon Q&A session, which took place (late) on September 1st 2018. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: How do I choose a wallet? - https://youtu.be/tN6b62sEpsY Secure, tiered storage system - https://youtu.be/uYIVuZgN95M Hardware wallets and attack surface - https://youtu.be/8mpDcBfNA7g Setting up secure storage devices - https://youtu.be/wZ9LxLLvfXc What is a private key? - https://youtu.be/xxfUpIV9wRI How do mneomonic seeds work? - https://youtu.be/wWCIQFNf_8g Using paper wallets - https://youtu.be/cKehFazo8Pw Wallet design and mass adoption - https://youtu.be/WbZX6BDZJHc Cryptographic primitives - https://youtu.be/RIckQ6RBt5E Public keys vs. addresses - https://youtu.be/8es3qQWkEiU Re-using addresses - https://youtu.be/4A3urPFkx8g Coin selection and privacy - https://youtu.be/3Ck683CQGAQ Multi-signature and distributed storage - https://youtu.be/cAP2u6w_1-k Nonces, mining, and quantum computing - https://youtu.be/d4xXJh677J0 Software distribution security - https://youtu.be/_V0vqy046YM Protocol development security - https://youtu.be/4fsL5XWsTJ4 Geopolitics and state-sponsored attacks - https://youtu.be/htxPRTJLK-k How to get people to care about security - https://youtu.be/Ji1lS9NMz1E Honest nodes and consensus - https://youtu.be/KAhY2ymI-tg Why running a node is important - https://youtu.be/oX0Yrv-6jVs 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 https://twitter.com/aantonop Website: https://antonopoulos.com/ 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: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)