---
title: "Discussion on \"Frontend Security in Fintech- \nBy Kosu, Timiebi Nicholas\" | Hashnode"
description: "Discussion on \"Frontend Security in Fintech- \nBy Kosu, Timiebi Nicholas\". Frontend security mistakes in fintech. \ntoken storage, CSRF, XSS, input sanitization, and security \nheaders with real TypeScript fixes for Next.js."
url: "https://hashnode.com/posts/frontend-security-in-fintech-by-kosu-timiebi-nicholas/6a84ec4d9a43592fa5d87473"
---

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# [Frontend Security in Fintech- By Kosu, Timiebi Nicholas](https://timiebi.hashnode.dev/frontend-security-in-fintech-by-kosu-timiebi-nicholas?utm_source=hashnode&utm_medium=feed)

Frontend security mistakes in fintech. token storage, CSRF, XSS, input sanitization, and security headers with real TypeScript fixes for Next.js.

Aug 18 · 10 min read · timiebi.hashnode.dev  
Updated Aug 26  
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-   [#security](https://hashnode.com/tag/security)
-   [#nextjs](https://hashnode.com/tag/nextjs)
-   [#typescript](https://hashnode.com/tag/typescript)
-   [#fintech](https://hashnode.com/tag/fintech)
-   [#reactjs](https://hashnode.com/tag/reactjs)

## Written by

[KOSU TIMIEBI NICHOLAS](https://hashnode.com/@timiebi)

@timiebi

  
[View profile](https://hashnode.com/@timiebi)

Senior Software Engineer exploring the intersection of frontend engineering, backend systems, and real-world problem solving. I write about React, TypeScript, Next.js, Node.js, NestJS, PostgreSQL, architecture, and lessons from building products.

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