Why UPI and Fintech Apps Need Business Logic Testing (Not Just Security Testing)

<p>Business logic flaws are vulnerabilities that exist not because of a coding mistake, but because the application trusts its own workflow too much. Instead of exploiting a

<p>I've been writing software professionally since 2011.</p> <p>Java, C#, Kotlin, Node.js. Enterprise backends, microservices, APIs, data pipelines. I've shipped production code

<h2> The Asymmetry of Change: Why Your Tests Are Looking the Wrong Way </h2> <p>A passing build is often treated as a certificate of correctness. In reality, it's a narrow

<p>Your payment tests passed in staging. Then PhonePe pushed an SDK update on Tuesday, the UPI intent deep link stopped launching on Samsung devices, and 12% of Wednesday's

<h2> When Agentic AI Breaks Your Pricing Model </h2> <p><a href="https://github.blog/news-insights/company-news/changes-to-github-copilot-individual-plans/" rel="noopener

<p><em>By Nasarah Dashe</em></p> <p>If you have sent money via USSD, paid for groceries with a mobile wallet, or onboarded a new fintech app in the last 12 months, you have

<h2> The risk in one paragraph </h2> <p>Every time your team deploys software to AWS, a pipeline authenticates with credentials that can modify production infrastructure. In most

<p>Most companies shipping AI have never once tried to break it.</p> <p>Not because they don't care about security. Because they assume the model handles it. The model was trained