DECRYPT · 2026-10-16 19:36 UTC

Hackers Jailbreak iPhone 18 Pro on Stage, and It Survives a Reboot

Security firm Calif.io demonstrated an untethered jailbreak on iPhone 18 Pro running iOS 27.0.1 at Hexacon in Paris on October 16, with root access persisting after reboot. The jailbreak was achieved through a chain of vulnerabilities that escape the app sandbox and bypass hardware-backed defenses; Calif has not disclosed the specific bugs or released a tool. Apple's iOS 27 security notes credit Calif.io and Anthropic's Claude for identifying two unrelated crash bugs.

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