iOS security warnings intensify for older devices
Newer iOS releases include protections unavailable in previous software versions.
Apple has issued a renewed warning to iPhone users, urging them to install the latest version of iOS to avoid exposure to emerging spyware threats targeting older versions.
Devices running iOS 26 are no longer fully protected by remaining on version 18, even after updating to the latest patch. Apple has indicated that recent attacks exploit vulnerabilities that only the newest operating system can address.
Security agencies in France and the United States recommend regularly powering down smartphones to disrupt certain forms of non-persistent spyware that operate in memory.
A complete shutdown using physical buttons, rather than on-screen controls, is advised as part of a basic security routine, particularly for users who delay major software upgrades.
While restarting alone cannot replace software updates, experts stress that keeping iOS up to date remains the most effective defence against zero-click exploits delivered through everyday apps such as iMessage.
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