Apple released iOS 18.5, addressing a critical security flaw in the iPhone 16e's C1 modem, its first self-designed modem. The vulnerability, affecting baseband signal processing, could have allowed attackers with network access to intercept data. The update improves state management to prevent exploitation. iOS 18.5 also includes other security fixes for various system components, though none were actively exploited. Apple urges users to update immediately.

Prepared by Jonathan Pierce and reviewed by editorial team.