Apple mobile devices based on the iOS platform implement multiple protection mechanisms and platform restrictions to fulfill several security requirements and support Apple's business model. This presentation focuses on a recently disclosed vulnerability that allows to manipulate a sensitive core default iOS behaviour, which facilitates the exploitation of other vulnerabilities potentially targeting this mobile platform. The design flaw affects the multiple Apple mobile devices (iPhone, iPad, iPad mini..) since iOS version 5 up to the latest iOS version. Although the flaw was discovered in early 2012, it has remained private while researching and evaluating the current vulnerability disclosure models, the real interests of modern vulnerability markets, as well as other vulnerability discovery implications which will also be discussed during the talk. Raul Siles is founder and senior security analyst at DinoSec. For over a decade, he has applied his expertise performing advanced technical security services and innovating offensive and defensive solutions for large enterprises and organisations in various industries worldwide. Throughout his career he has worked as an information security expert, engineer, researcher and penetration tester at Hewlett Packard, as an independent consultant, and on his own companies, Taddong and DinoSec. Raul is an active speaker at international security conferences and events and a certified instructor for the SANS Institute. Raul is one of the few individuals worldwide who have earned the GIAC Security Expert (GSE) designation. He holds a master's degree in computer science from UPM (Spain) and a postgraduate in security and e-commerce.