Can I recover btc sent to an incorrect address?
Confirmed Bitcoin transactions cannot be cancelled, reversed, undone or recovered.
The only person who can give you your money back is the recipient, by creating a new transaction to send the same amount back to you.
I realize now that I had a malware copy of electrum
If the initial mishap was due to a ...
Unfortunately, the method used to generate new keys at the time was to generate them randomly and store them in the wallet.dat file. So if you don't have a backup of the file after the address was used, it is not guaranteed that your backups will have the necessary key.
I would suggesting dumping the wallet.dat file to see all the private keys contained ...
I understand these wallets only work with provider's mobile app, online interface or their computer software, correct ?
No. Some of the most popular hardware wallets are supported by third party software. For example, Trezors and Ledgers can be used with Electrum who have implemented support for these devices directly. Other wallet software like Wasabi ...
I had been mining bitcoin a few years ago
Depending on what you mean by "few", this would only be possible if you had spent several thousand dollars to buy specialized Bitcoin mining equipment. A few years ago is too recent to mine with a PC or with graphics cards in a PC.
It has never been possible to mine Bitcoin with a phone for example.
If you ...
You have 21 words, out of 24. Therefore, 21 of 24 slots are taken, but not necessarily correctly.
There are 2048 possibilities for each word.
The first word can go into one of any 24 positions, therefore 2048*24. The next in any of 23, and the last in any of 22.
This gives you a total of 2048 * 24 * 2048 * 23 * 2048 * 22, or 2048^3 * 24 * 34 * 22.
That's a ...