Congrats to you! Even this storys all about ETH, we can take key lessons from this situation for Bitcoin too.
  • Don't save your mnemonic online
  • Don't save your mnemonic on a devices that can connect internet
  • Even if you have fractions of mnemonic words, people can find it. Just takes time and effort. I'm not pro but I think using 24 words mnemonic will be safer than using 12 words mnemonic right? Also, that is interesting that no one found this before you without a technic. I guess the 4th word is written with one of the stock MS Office fonts. If you find those characters on a font file (or do OCR) and change the font to Calibri, I guess you can see that word. I wish I see this bounty before 😄