How API Fuzzing Exposes Hidden Security Flaws

Lucas and Luna dig into API fuzzing — why sending random garbage to your endpoints is one of the most effective ways to find vulnerabilities before attackers do. They walk through a real case: a fintech startup that fuzzed its payment API and discovered an integer overflow that would have let a bad actor charge negative amounts. They explain how property-based testing frameworks like QuickCheck and Rust's proptest apply fuzzing logic to API contracts, catching edge cases that human-written tests miss. The episode covers input generation strategies, stateful vs. stateless fuzzing, and why most teams don't fuzz until after a breach. If you build or maintain an API, this episode will change how you think about test coverage. #API #Fuzzing #Security #SoftwareTesting #PropertyBasedTesting #EdgeCases #Vulnerability #Fintech #Rust #QuickCheck #DevTools #Business #Technology #FexingoBusiness #BusinessPodcast #LucasAndLuna #TheDeveloperToolsPodcast #Episode52 Keep every episode free: buymeacoffee.com/fexingo