How I found a security issue in The Fork — Yummy Days promotion and how this could have affected their business As a financial-based web applications developer, I am always concerned about security, but it is also one of my passions. Over the last two years, some of the web applications in which I have worked have been submitted to thorough security checks, to ensure they were completely secure before going into production mode. In this journey, I have learned a lot about security — authentication, potentially dangerous requests, injections, etc. — and how to design secure applications. Eating is another of my passions, lunch time is my favorite moment of the day and El Tenedor (in Spain) / The Fork is the best app to reserve an appointment in a restaurant, with lots of discounts, that helps you saving money. In this story I will show you how I found a security issue with a promotion....