MacRumors article
Apple Issues Rare iOS 18 Security Update to Protect Against DarkSword Exploit
https://www.macrumors.com/2026/04/01/apple-ios-18-darksword-security-update/
Some content translated from Gemini 3 Flash and edited.
Apple has released iOS 18.7.7 and iPadOS 18.7.7, which appear to include fixes for the DarkSword (DarkSword) security vulnerability according to US standards.
Wired article states that Apple plans to release the iOS 18 update for more devices and will allow users who have automatic updates enabled to receive the security update. iOS 18.7.7 was initially limited to iPhone XS and XR models, but is now installable on other iPhone models.
Apple typically encourages users to update their devices to the latest supported version of iOS or iPadOS to resolve security vulnerabilities. Therefore, providing a security update for iOS 18 users who do not want to simply upgrade to iOS 26 is very unusual. Apple has stated that the iOS 18.7.7 update will be available on more devices and that additional notifications will be sent to devices running older versions of iOS 18 to install the urgent security update.
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