---
title: "Attacks on JSON Web Token (JWT)"
url: https://daily.dev/posts/attacks-on-json-web-token-jwt--8ilfogxq9
source_url: https://infosecwriteups.com/attacks-on-json-web-token-jwt-278a49a1ad2e
type: article
source: "InfoSec Write-ups"
published: 2022-01-25T11:27:52.088Z
updated: 2022-01-25T11:27:52.094Z
tags: ["security", "data-science", "authentication"]
reading_time: 8
upvotes: 65
comments: 1
language: en
---

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# Attacks on JSON Web Token (JWT)

**[InfoSec Write-ups](https://daily.dev/sources/infosecwriteups)** · 8 min read · 65 upvotes · 1 comments

## Summary

In this article, we will discuss the attacking part on JWT, which is the hacker’s favorite part. Abusing None algorithm is used to generate a JWToken. In that case, anyone can create a forge JWT Token and submit it to a resource server because there is no signature available in the token.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://infosecwriteups.com/attacks-on-json-web-token-jwt-278a49a1ad2e>

## Community discussion

Top comments from developers on daily.dev.

**@vinicius73** · 0 upvotes

> Awesome article, very understandable and precise. Congratulations.

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---

Tags: [#security](https://daily.dev/tags/security), [#data-science](https://daily.dev/tags/data-science), [#authentication](https://daily.dev/tags/authentication)

[View this post on daily.dev](https://daily.dev/posts/attacks-on-json-web-token-jwt--8ilfogxq9)