Payment Security

Build PCI-DSS Compliant Payment Apps with AI

Cutline detects payment processing in your codebase and auto-loads PCI-DSS constraints—so your AI never stores raw card numbers.

Why AI-Generated Payment Code Fails PCI-DSS Audits

AI coding agents don't understand the Payment Card Industry Data Security Standard unless you explicitly teach them. The most common violation: storing raw credit card numbers in your database.

Common PCI-DSS Violations in AI Code:
  • Storing full credit card numbers (PAN) in database
  • Logging credit card data in application logs
  • Transmitting card data over unencrypted HTTP
  • Missing tokenization for recurring payments
  • No audit trail of who accessed cardholder data
  • Weak encryption or no encryption at rest

The penalty? $5,000 to $100,000 per month in fines from card networks. Plus mandatory forensic audits costing $50,000+.

How Cutline Enforces PCI-DSS Compliance

1. Automatic Payment Detection

When Cutline detects Stripe, payment libraries, checkout flows, or card processing endpoints in your codebase, it automatically loads PCI-DSS constraints into your coding agent.

2. Tokenization Enforcement

Your agent is instructed to NEVER store raw card numbers. Instead, it uses payment gateway tokens (Stripe tokens, PayPal tokens) and stores only the last 4 digits for display.

3. TLS and Encryption Requirements

Cutline enforces TLS 1.2+ for all payment endpoints, strong encryption at rest for any stored payment metadata, and proper key management with rotation policies.

PCI-DSS 12 Requirements Covered

Requirement 3: Protect Stored Data

Tokenization strategy, masking of PAN (show only last 4 digits), encryption of stored payment metadata, secure key storage.

Requirement 4: Encrypt Transmission

TLS 1.2+ enforcement for all payment endpoints, HSTS headers, secure certificate validation, no mixed content warnings.

Requirement 7: Restrict Access

Need-to-know access controls for payment data, RBAC enforcement, minimum necessary access principle for API endpoints.

Requirement 8: Identify Users

Unique user IDs for anyone accessing payment systems, multi-factor authentication enforcement, password policies.

Requirement 10: Monitor Access

Immutable audit logs for all cardholder data access, tamper-proof log storage, 90-day log retention minimum.

Requirement 11: Test Security

Vulnerability scanning guidance, penetration testing checklists, security testing integration into CI/CD pipeline.

Who Needs PCI-DSS Compliance?

E-commerce Platforms

Any application that accepts, processes, stores, or transmits credit card information must comply with PCI-DSS.

SaaS with Billing

Subscription billing, invoicing systems, and recurring payment platforms need PCI-DSS even if using Stripe or PayPal.

Marketplaces & Payment Platforms

Multi-vendor marketplaces, payment orchestration platforms, and financial applications handling card data require full compliance.

Related Resources

Build PCI-DSS Compliant Payment Apps Today

Start with a free security audit to identify PCI-DSS gaps in your payment processing.