I don&#x27;t think we need to suspect the RAR encryption is broken. By default, at least on Linux, even if an archive is encrypted a &#x27;rar l &lt;file&gt;&#x27; will show a file list though. So if the files had relevant filenames like mybitcoins.txt then it made searching the harddrive for money easier. At least I suspect crackers look for files called creditcards.txt, passwords.txt etc.<p>If the crackers knows the archive contains coins, then bruteforcing is worth it.