Hi guys,
A friend of mine just popped into my house yesterday and gave me a piece of paper with a privkey of BTC wallet. The thing is that it is old-washed paper and I can read only the first 9 symbols of this string. Is it possible to retrieve his Bitcoin with only that fraction of a private key (the balance is 1.09BTC)? How long would it take to brute force the rest of the private key?
No, if they were seeds and they were 9 out of 12 words, your chances might be better.
search for the QR private key as it may be easier to compile it than brute force 9 char pvt key, (if the paper is not so torn) and some time QR contains a sticker to prevent it from being scanned by a third party.