---
title: "Discussion on \"Security Principles - Part III: Hardcoding the Safe Zones\" | Hashnode"
description: "Discussion on \"Security Principles - Part III: Hardcoding the Safe Zones\". Breaking down the architectural decisions in a biometric fintech payment system that were made before any vulnerability forced them."
url: "https://hashnode.com/posts/security-principles-hardcoding-the-safe-zones/6abfaf11914310f7da5deeb9"
---

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# [Security Principles - Part III: Hardcoding the Safe Zones](https://rootshadow.hashnode.dev/security-principles-hardcoding-the-safe-zones?utm_source=hashnode&utm_medium=feed)

Breaking down the architectural decisions in a biometric fintech payment system that were made before any vulnerability forced them.

Sep 10 · 9 min read · rootshadow.hashnode.dev  
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-   [#cybersecurity](https://hashnode.com/tag/cybersecurity)
-   [#secure-coding](https://hashnode.com/tag/secure-coding)
-   [#security-engineering](https://hashnode.com/tag/security-engineering)
-   [#secure-by-design](https://hashnode.com/tag/secure-by-design)
-   [#application-security](https://hashnode.com/tag/application-security)

## Written by

[Mira Ezz-Eldin](https://hashnode.com/@mira3zzeldin)

@mira3zzeldin · El Mansoura, Ad Daqahliyah, Egypt

  
[View profile](https://hashnode.com/@mira3zzeldin)

SOC Analyst | Cybersecurity Researcher

Detecting threats before they become incidents. 🛡️ Junior Blue Teamer | Security Automation with Python, Go & Bash

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