Wenn Sie einfach 4 Wörter aus der Sequenz von 24 Wörtern der Saatgutphrase austauschen und in das Papier schreiben, und wenn ein Hacker das Papier erhält, wie sicher sind Sie in einem solchen Fall?

Its simple,, separate the seeds,, 12 in one place and other in another place ,,, but there don’t needs to add an option like recovery because if someone can’t manage the seeds its his responsibility.

If you have written the wrong seed on a paper,, and someone were to find it, you are safe. Especially if it’s unclear how many wrong words there are in the sequence.

Obviously as the number of words you change increases, the safety from others diminishes while the danger of you yourself forgetting the real sequence increases.

How would they know which 4 words are the wrong ones?

What you suggest is a really, REALLLY bad idea.

[https://youtu.be/p5nSibpfHYE](https://youtu.be/p5nSibpfHYE)

Nonetheless see here where similar question was asked:
[https://bitcoin.stackexchange.com/questions/92540/bruteforcing-a-seed-with-24-words-of-a-unknown-order](https://bitcoin.stackexchange.com/questions/92540/bruteforcing-a-seed-with-24-words-of-a-unknown-order)

never, noone is going to realistically try that and even you will someday forget it most likely

Look into what a passphrase is, it adds an additional 25th word to access your funds

I did mine like this ever since I started crypto. Only my spouse know which numbers needed to be switched to retrieve and access my crypto assets, in case something happens to me.

Don’t do it, you will confuse yourself.

DO NOT DO IT!
If you are going to split it, use established methods like Shimir Secret Sharing… don’t do your own thing or you will blow your funds!