Based on comparable "legacybtc" leaks, the file likely contains one of the following:

"We found legacybtcfile21novtxt on an old hard drive from a defunct exchange. The file appears to be a standard ledger, but the header contains a PGP signature and a string of hexadecimal code. We believe it points to a 'dust' wallet containing 0.5 BTC. Can you break the code?"

: Often, these .txt files are bundled in .zip or .exe archives that contain trojans designed to scan the downloader's computer for their own wallet.dat files.

Actions you can take (pick one):

Is the the key to a lost fortune or a piece of digital garbage? The truth likely lies somewhere in between.