Apple’s new Memory Integrity Enforcement acts like a shield inside the iPhone 17 and iPhone Air, blocking the memory tricks that spyware relies on and raising the bar for anyone trying to hack your device. Here’s how it works.
iPhone 17 has better security
The feature, announced on September 9, 2025, by Apple Security Engineering and Architecture, marks the culmination of five years of hardware and software work. The company describes it as the most significant advance in memory safety ever shipped in consumer operating systems.
Memory Integrity Enforcement (MIE) is designed to prevent memory corruption exploits, the bread and butter of sophisticated spyware. Apple is careful to point out that most iPhone users will never face these kinds of attacks.
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