bip39 VS btcrecover

Download the offline version of the BIP39 tool via https://github.com/iancoleman/bip39/releases/latest. Right click on bip39-standalone.html and save the file.

You could make this with a Raspberry Pi Zero and the stand-alone version of the Coleman Web page+javascript https://github.com/iancoleman/bip39/releases/latest/

Since what I just said may be confusing... here it is in practice with a link so you can try it for yourself using Ian Coleman's Mnemonic Code Converter:

With Christmas coming around and the bull market upon us, I thought it would be a good time to remind everyone one about the art of mnemonic memorization. The idea is you take a BIP39 seed, then make a poem, story, limerick, or song using the words to help you remember. If you gift bitcoin, you can include the writing with the seed-card you provide to help the recipient remember as well. If you want to play along, go to Ian's BIP39 page and generate a valid seed mnemonic then see if you can't create a blurb of text that includes all the words.

You can try Ian Coleman's tool at : https://iancoleman.io/bip39/

13) Go to https://iancoleman.io/bip39/. There you need to change "Coin" value of the dropdown to "ETH – Ethereum". After that you can paste Secret phrase associated with Key 1 to “BIP39 Mnemonic” section

As I learned how to build websites, I wanted to use my new skill to help the crypto community in any way I can. So, I made a wallet generator website. It's like iancoleman BIP39, but with a nicer and more user-friendly design inspired by Tornado Cash, a simple way to make wallets from files/images, and support for Monero!

This would be quickly crackable using something like btcrecover. (https://github.com/gurnec/btcrecover)

For some ideas see this script: https://github.com/gurnec/btcrecover/

Try to use this software on GitHub https://github.com/gurnec/btcrecover - 922 stars, it's good - there is also a tutorial on how to recover a lost password from a wallet.dat file. 6 characters should be fast to find with a good GPU.

Perhaps not possible or at least a few years on a modern pc. Checkout btcrecover https://github.com/gurnec/btcrecover do some test runs with a known seed missing 2 words, then 3 words before your 4.

The hacker can use the 24 words to recover the wallet. If there's nothing in it, he might give up, or he might guess that there's a passphrase. Then he hires a private investigator to discover your private details - schools, pets, uncles, birthdays, anniversary dates ... - and he configures https://github.com/gurnec/btcrecover with these details. If you're like most people, your idea of a secure passphrase can be guessed using 30 minutes to 10 days of brute force

This code can compute multiple combinations: https://github.com/gurnec/btcrecover - Last time I used it I found it hard to setup and I guess today it'll be even harder.

use a brute forcer approach like btcrecover. note that the learning curve is pretty up there though. every little characteristic you can remember about your passphrase can help speed up the process (number of characters, lower case or upper case, digits, positions of these characters, list of characters to use, etc.)