Wrong direction, efforts are in vain

Today a friend asked me to crack the Bitcoin Core wallet password. When asked for the address, it was a public wallet. The key point is that this friend spent 3.6 million to buy 20 8-card high-end 4090 machines to crack this wallet. It took more than half a year, and the electricity bill was about 250,000, which took a lot of effort. The machine can be sold or used for other purposes, and there will be no loss. The electricity bill is lost, and the effort is wasted. So before cracking a wallet, first check whether it is a public wallet. Most public wallets are fake, and even if the password is cracked, it is not necessarily possible to transfer coins.