i got 24 word seed for my ledger nano s. And i split it up on two papers.
21 words on one paper and 3 words on the other one.
Lets say my 21 word paper would be exposed. Would it be hard for the persona that has this 21 word seed to crack the wallet ?
thanks
Yes is the simple answer, the remaining three words out of the eighteen could be dictionary brute force attacked, it is not a hard task and would be easier and faster than cracking some missing characters in a private key. If you have been exposed, move to a new wallet at once.