Security Hardening for Shopify Apps

This skill covers essential security practices for building secure Shopify apps. Security is non-negotiable when handling merchant data, customer PII, and payment information.

Why Security Matters for Shopify Apps

• Merchant Trust: Apps handle sensitive business data
• Customer PII: Access to customer names, emails, addresses
• Payment Data: Some apps process or display financial information
• App Store Requirements: Shopify reviews apps for security compliance
• Legal Liability: GDPR, CCPA, and data protection regulations apply

1. Authentication & Authorization

Session Management

// app/routes/app.tsx - Secure session handling
import { authenticate } from '~/shopify.server';