Audit Logs: The Silent Guardian of Every Serious System

<p><a

<p>I built this project for the <strong>#H0Hackathon</strong> (Hack the Zero Stack with Vercel and AWS Databases). This post covers how I built it using Amazon DynamoDB and

<p><em>An honest engineering argument for tamper-evident audit logging — and the limits it cannot overcome.</em></p> <h2> 1. The promise of an audit log </h2> <p>Compliance

<p>Most fintech teams build their audit trails in the application layer.</p> <p>An ORM plugin here. A middleware hook there. A background job that "eventually" writes to an audit

<p>Most applications don't fail because of bad code.</p> <p>They fail because of bad architecture decisions made early that nobody questioned <br /> until it was too late.</p>