Explore the vulnerabilities and security challenges in iOS 6, 7, and 8 through this 49-minute conference talk from SyScan'15 Singapore. Delve into jailbreak persistence techniques, bug fixes, and new exploits. Examine Apple's mistakes, Pangu and Taiji jailbreaks, and the historical perspective of iOS security. Learn about incomplete code signing, time-of-use vulnerabilities, and Apple's attempts to patch these issues. Discover the differences between jailbreaks made in China and those by Western developers. Gain insights into iOS security through practical examples, including mock API calls and text request analysis, providing a comprehensive overview of iOS security failures and their implications.