# Day 4: Social Signal: Share a Post

**URL:** <https://community.auth0.com/t/day-4-social-signal-share-a-post/194511>\
**Category:** The 25 Days of Auth0 Community Daily Challenge\
**Created:** [December 4, 2025, 1:00pm UTC](https://community.auth0.com/t/day-4-social-signal-share-a-post/194511 "2025-12-04T13:00:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dawid.matuszczyk](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/dawid.matuszczyk/32/74550_2.png) [@dawid.matuszczyk](https://community.auth0.com/u/dawid.matuszczyk)\
**Post date:** [December 4, 2025, 1:00pm UTC](https://community.auth0.com/t/day-4-social-signal-share-a-post/194511/1 "2025-12-04T13:00:37Z")

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[Challenge Task:](https://community.auth0.com/t/get-ready-to-learn-and-win-announcing-the-25-days-of-auth0-community-daily-challenge/194507) Search for a recent social media post or content piece created by an Auth0 developer (from our Blog, X/Twitter, LinkedIn, or YouTube) that taught you something new or solved a problem for you.

**How to Participate:** Reply to this thread with the link to the post/video + one sentence explaining what you learned from it.

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**Author:** ![joseauth0](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/User_font_awesome.svg/768px-User_font_awesome.svg.png) [@joseauth0](https://community.auth0.com/u/joseauth0)\
**Post date:** [December 5, 2025, 12:10pm UTC](https://community.auth0.com/t/day-4-social-signal-share-a-post/194511/2 "2025-12-05T12:10:36Z")

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post about: Demystifying OAuth Security: State vs. Nonce vs. PKCE

> **[Demystifying OAuth Security: State vs. Nonce vs. PKCE](https://auth0.com/blog/demystifying-oauth-security-state-vs-nonce-vs-pkce/)**
>
> Learn the critical differences between OAuth State, Nonce, and PKCE. Discover how these parameters prevent CSRF, replay attacks, and code...

I learnt the critical differences between OAuth State, Nonce, and PKCE.

At the end of that blog post, summary table which was right on point to get a big picture.

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [December 5, 2025, 1:01pm UTC](https://community.auth0.com/t/day-4-social-signal-share-a-post/194511/3 "2025-12-05T13:01:04Z")

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