His story, he changed the password before while drunk and completely forgot it. He also used various recovery tools and password combinations for years but nothing worked.
The key to restoring access was an AI chatbot called Claude AI.
He uploaded files from his old college computer, and there AI helped him find old backup files, old wallet versions, and recovery data.
They say AI did not "hack" Bitcoin security. It's just like an assistant to help you find the right wallet file and recovery information.
Eventually they found the older wallet.dat file made before changing the password. Because he still holds the old recovery phrase, he opened the wallet again without bypassing its security.
Many have said this is a reminder of how important it is to properly backup crypto wallets and recovery phrases. Due to the high price of Bitcoin now, it is possible that there are old laptops or hard drives that already contain millions of worth of crypto.
SOURCE: Interesting Engineering - Claude AI helps uncover forgotten Bitcoin fortune worth $400K hidden for 11 years