---
title: "Comment by Atef Kurusan on \"Change One Number. Take Everything.\" | Hashnode"
description: "The hotel key-card analogy makes IDOR incredibly easy to understand."
url: "https://hashnode.com/posts/change-one-number-take-everything/6a7afaf6beeabc2bbd49a950/comment/6a7b0d3fcc1a0dffbf349136"
---

[Discussion](https://hashnode.com/posts/change-one-number-take-everything/6a7afaf6beeabc2bbd49a950)

Comment [Change One Number. Take Everything.](https://hashnode.com/posts/change-one-number-take-everything/6a7afaf6beeabc2bbd49a950)

[Atef Kurusan](https://hashnode.com/@atefkurusan)

[Aug 11](https://hashnode.com/posts/change-one-number-take-everything/6a7afaf6beeabc2bbd49a950/comment/6a7b0d3fcc1a0dffbf349136)

The hotel key-card analogy makes IDOR incredibly easy to understand.