Apple Mainstreams Memory Tagging Defense

Apple worked with Arm to upgrade Memory Tagging (EMTE) and built a new always‑on Memory Integrity Enforcement system into iPhone 17/Air, covering the kernel and dozens of core processes. Apple claims this raises the cost and complexity of exploit chains used by mercenary spyware and disrupts decades‑old memory‑corruption techniques. — Mass deployment of hardware‑enforced memory safety could reshape the spyware market, consumer security expectations, and push rival platforms toward similar defenses.