Indexofbitcoinwalletdat 2021 -

But not all consequences were neat. When the patch was applied, a handful of wallets listed in the index had already been drained. The forensic trail painted a familiar portrait: opportunistic scripts crawling index pages, pulling wallet binaries, extracting keys with known formats, and sweeping balances into mixers. Some victims had received small ransom-like emails beforehand; others simply logged in one morning to empty accounts.