Apple's mobile operating system has evolved into one of the most tightly controlled consumer platforms, shaped by years of defensive hardening at both the hardware and kernel levels. Mechanisms such as Kernel Patch Protection, Pointer Authentication and the Page Protection Layer have significantly raised the bar for achieving arbitrary code execution and sustained system control. As a result, modern jailbreak development now depends on chaining logic flaws, kernel read-write primitives and protection bypasses rather than direct code modification. Recent tools navigate these constraints to enable unsigned software execution and system-level customization on supported iOS versions.

This video lesson, taught by Lars Fröder, security researcher at Cellebrite Labs, will cover:

• Evolution of iOS security controls and their impact on post-exploitation techniques;
• Internal design of recent jailbreak and code-signing bypass tools;
• Implications of recent platform changes for future jailbreak development.