---
id: 930
title: "How to Regex: A Practical Guide to Regular Expressions (Regex) for Hackers"
source_domain: bugcrowd.com
source_url: "https://www.bugcrowd.com/blog/how-to-regex-a-practical-guide-to-regular-expressions-regex-for-hackers/"
published_at: "2021-03-12T00:00:00Z"
tags: ["bug-bounty", "automation", "tutorial", "tools", "tooling", "recon", "regex", "hakluke", "waf-bypass"]
phying_url: "https://phying.com/item/930"
lang: en
---

# How to Regex: A Practical Guide to Regular Expressions (Regex) for Hackers

## Summary

A hands-on regex tutorial for hackers covering fundamentals, common tools and practical patterns like extracting domains from bulk URL lists, plus bypassing regex-based security controls.

## Intelligence Metadata

- **Sources:** bugcrowd.com
- **Published:** 2021-03-12T00:00:00Z
- **Original:** https://www.bugcrowd.com/blog/how-to-regex-a-practical-guide-to-regular-expressions-regex-for-hackers/
- **Phying News:** https://phying.com/item/930