: When piping, Hashcat cannot build a dictionary cache. This means every time you restart the attack, Hashcat must re-read the entire stream from the beginning. Performance Considerations
Hashcat natively supports the following formats for direct wordlist loading: hashcat compressed wordlist
: Standard format, though some users report occasional pathing issues on Windows if not in the same directory as the executable. : When piping, Hashcat cannot build a dictionary cache
: If you are cracking a "fast" hash (like MD5 or NTLM) at billions of hashes per second, your CPU’s decompression speed may become a bottleneck, slowing down your GPU. Using Hashcat to load a compressed wordlist - Super User : If you are cracking a "fast" hash
: It’s easier to manage and transfer a single .zip or .gz file than a massive .txt file. Supported Compression Formats
For legacy versions or unsupported formats (like .7z or .bz2 ), you can decompress to stdout and pipe the output to Hashcat. Use the --stdin-timeout-abort flag if you expect long delays between data chunks.