---
title: "Discussion on \"I Audited My Own Ledger Like a Fintech Expert. It Failed.\" | Hashnode"
description: "Discussion on \"I Audited My Own Ledger Like a Fintech Expert. It Failed.\". A double-entry ledger that passed every test still had a bug that turned 100 dollars into 15 dollars, a chain that forked the moment you ran two copies, and no way to ever forget a customer. Here is the teardown, and the fix."
url: "https://hashnode.com/posts/auditing-and-hardening-a-go-ledger-white-label/6a52072d80bc08d969a66d34"
---

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# [I Audited My Own Ledger Like a Fintech Expert. It Failed.](https://notes.sohag.pro/auditing-and-hardening-a-go-ledger-white-label?utm_source=hashnode&utm_medium=feed)

A double-entry ledger that passed every test still had a bug that turned 100 dollars into 15 dollars, a chain that forked the moment you ran two copies, and no way to ever forget a customer. Here is the teardown, and the fix.

Jul 11 · 12 min read · notes.sohag.pro  
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-   [#go](https://hashnode.com/tag/go)
-   [#golang](https://hashnode.com/tag/golang)
-   [#fintech](https://hashnode.com/tag/fintech)
-   [#ledger](https://hashnode.com/tag/ledger)
-   [#security](https://hashnode.com/tag/security)
-   [#postgres](https://hashnode.com/tag/postgres)

## Written by

[Sohag Hasan](https://hashnode.com/@sohag)

@sohag · Dhaka, Bangladesh

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

Tech Lead at MobyPay | Certified Laravel Developer | PHP JS GO | DevOps Enthusiast | Open to projects

WhoAmI => notes.sohag.pro/author

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