Improve React Native App Security: 10 Practices to Evaluate Your Project

After working with React Native for several years, I've put together key security practices you can use to evaluate your project. Apps can't be 100% secure, but you can make hacking difficult and expensive. Here's a checklist that covers the main attack surfaces and what to do about them. 1. SSL Pinning Problem: API calls can be intercepted with tools like Burp Suite or Charles Proxy, exposing request payloads and responses—including tokens and sensitive data. Solution: Implement certificate pinning so the app only trusts your server's certificate (or public key). That way, even if someone installs a custom CA, man-in-the-middle traffic won't be accepted. Use react-native-ssl-pinning (or a similar library) to pin your API domain. Pin the certificate or public key hashes and fail closed if they don't match. Remember to update pins before cert rotation so the app doesn't break. 2. Reverse Engineering Problem: APK (Android) and IPA (iOS) can be decompiled using tools like APKTool, jadx, o