Five Layers of Payment Protection in a Product Built by a Non-Programmer
A non-programmer describes how AI-generated code for payment processing often contains security holes like price tampering and missing webhook verification. He proposes a workflow: first, ask the model to analyze the problem and provide options without writing code; then, test the finished code with a fresh AI session tasked to bypass payments. Finally, he lists five protection layers: logging, IP blocking, spend control per account, real-time alerts, and emergency shutdown.
The author, who is not a senior programmer but builds products using AI, describes common security flaws in AI-generated payment code: price tampering if validation is client-side, and lack of webhook verification, which can lead to either missing payments or granting free access. These errors are not caught by standard testing. He advises asking the AI to analyze the problem and suggest secure approaches before writing code. Before delivery, he runs a fresh AI session with access only to the code, tasked to bypass payments, and such agents found routes missed by the first audit. He implemented five protection layers: comprehensive logging, automatic blocking of suspicious IPs, per-account spend control, real-time alerts, and an emergency shutdown script that cuts all external connections. The author admits that AI agents are not a substitute for professional penetration testing and that his measures do not make the product invulnerable but rather an unattractive target. He works at Hikmah Labs.
- Abbreviations
- IP = Internet Protocol — Интернет-протокол
- API = Application Programming Interface — Программный интерфейс приложения
Source: Habr — хаб ИИ —
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