---
title: "CodeQL zero to hero part 3: Security research with CodeQL"
url: https://daily.dev/posts/codeql-zero-to-hero-part-3-security-research-with-codeql-raqjje62o
source_url: https://github.blog/2024-04-29-codeql-zero-to-hero-part-3-security-research-with-codeql/
type: article
source: "GitHub Blog"
published: 2024-04-29T08:02:30.632Z
updated: 2024-05-09T08:43:33.910Z
tags: ["security", "codeql"]
reading_time: 27
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# CodeQL zero to hero part 3: Security research with CodeQL

**[GitHub Blog](https://daily.dev/sources/ghblog)** · 27 min read · 0 upvotes · 0 comments

## Summary

This post explores how to write and query for specific library methods using CodeQL, the difference between data flow analysis and taint flow analysis, and how CodeQL can help with security research in codebases.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.blog/2024-04-29-codeql-zero-to-hero-part-3-security-research-with-codeql/>

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---

Tags: [#security](https://daily.dev/tags/security), [#codeql](https://daily.dev/tags/codeql)

[View this post on daily.dev](https://daily.dev/posts/codeql-zero-to-hero-part-3-security-research-with-codeql-raqjje62o)