decrypt.coarticleHackers Jailbreak iPhone 18 Pro on Stage, and It Survives a Reboot
Reports that Calif.io demonstrated an untethered jailbreak of an iPhone 18 Pro on iOS 27.0.1 at Hexacon in Paris, showing root SSH access after a reboot and passcode unlock. The vulnerabilities are unnamed and no tool is public; Calif says it will publish later. The article notes Calif's prior use of Claude and Mythos Preview for exploit development, Apple's iOS 27 notes crediting Calif for two unrelated crash bugs, and the Apple mitigations (sandbox, PAC, secure boot chain) such a chain must defeat.
TL;DR Calif.io shows an untethered iOS 27.0.1 jailbreak on iPhone 18 Pro at Hexacon; no bugs or tool released yet.
Organisations named here
- Billy Ellis
- Hexacon
- Pointer Authentication Codes
- untethered jailbreak
Technologies named here
- iPhone 18 Pro running iOS 27.0.1
- iOS 27
- Signal
- iMessage
- macOS on Apple M5 chip
- iOS Safari
- iOS
- iPhone
- Claude
- Anthropic
- SSH
- Mythos
Threat actors named here
- Commercial spyware vendors
- Calif
Also named here
- Thai Duong
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