Do optional 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 - doc.satoshilabs.com/trezor-fa... blog.trezor.io/using-advanced...
Ledger Nano S - support.ledgerwallet.com/hc/e...
Ledger Blue - support.ledgerwallet.com/hc/e...
KeepKey - help.keepkey.com/start-here/i... help.keepkey.com/how-to-guide...
On the topic of inheritance and estate planning, see: • Video
Chapters
0:00 Is it unsafe to publicly publish on Facebook or Twitter the twenty-four word seed, treating my passphrase as the thing that protects my assets in my hardware wallet?
5:24 Brain wallets
7:50 The most important rule in cryptography is, don't roll your own crypto.
10:45 I took my BIP-39 seed, cut it into twenty-four pieces, mixed them up, encrypted them, put them on Dropbox, then erased it from the web, and I can only access it on the archive.
12:36 Passphrase, does that mean the password on the hardware wallet?
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: / aantonop
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Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.
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