Around 2018–2020, the phrase began circulating on Reddit (r/Bitcoin, r/HowToHack) and underground forums. Users reported that the attack vector was drying up. When people asked "Is indexofwalletdat patched?" they weren't asking if Bitcoin was broken; they were asking if the discovery method was dead.
For nearly a decade, a peculiar search string haunted the cryptocurrency world: indexof wallet.dat . Entering this phrase into a search engine—most notably Google, Bing, or Shodan—would, until very recently, return a horrifyingly simple list: directory indexes containing live, unencrypted wallet.dat files. indexofwalletdat patched
Web Application Firewalls (WAFs) now frequently flag automated scans for .dat files as malicious activity. Protecting Your Own Wallet Files If you are worried about your own wallet.dat being exposed: Around 2018–2020, the phrase began circulating on Reddit
While there is no single indexofwalletdat patch in Bitcoin Core, several software and infrastructure patches collectively solved the problem. For nearly a decade, a peculiar search string