Online auditing involves testing credentials against a live network service (like SSH, FTP, or a web login portal).

If you discover weak passwords on a system you are authorised to test, follow responsible disclosure practices:

You must only use password wordlists on systems you own or have explicit, written permission to test. Unauthorized brute-forcing of third-party networks violates computer crime laws globally. Always conduct your penetration testing within a controlled lab or an authorized bug bounty scope.

git clone --depth 1 https://github.com/danielmiessler/SecLists.git

CeWL is a Ruby application that spiders a given URL, up to a specified depth, and returns a list of words that can then be used for password crackers. It's particularly useful for generating targeted wordlists based on the content of an organisation's website, potentially including company names, product names, and terminology specific to that organisation.

This downloads the entire library to your computer, keeping the folder structure intact.

# Count total lines (passwords) wc -l wordlist.txt

The Probable-Wordlists repository takes a unique approach by sorting passwords by probability or popularity rather than alphabetically. The methodology recognises that slogging through an alphabetised list from "aardvark" to "zebra" is inefficient when the most common password is "password".

Password trends change. In 2023-2024, common passwords include Aaronsmith123 and LiverpoolFC . In 2025, expect AI-generated lists based on ChatGPT prompts. Follow GitHub repos like SecLists weekly.

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Given that comprehensive wordlist collections can exceed 24 GB (Probable-Wordlists repository) or even 80 GB of raw data, organised storage is essential. Consider:

Password wordlists are dual-use technologies. While they are vital for defensive auditing and strengthening corporate systems, using them against systems you do not own or do not have explicit, written permission to test is illegal under computer misuse laws globally. Always perform credential testing within an isolated lab, a verified bug bounty scope, or under a signed statement of work.