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How secure is your Bitcoin wallet's mnemonic seed phrase?
What makes your Bitcoin wallet's seed phrase secure? Explore entropy, checksums, and BIP39 in this hands-on, interactive guide to mnemonic generation.
In fact, you could run through the generation process offline using pen and paper, store your mnemonic and keys in your head, and a friend could send you Bitcoin immediately. Passphrases can add an additional layer of security to your Bitcoin custody, and can even be used to create decoy wallets to be surrendered under duress. Eventually I coded some basic visualisations, and found them such an intuitive way of grasping the BIP39 system that I decided to develop them into something worth publishing, in the hope of inspiring more people to go on the Bitcoin journey.
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