Apple breaks policy to push DarkSword patches to millions more iOS 18 iPhones

In an unusual move, Apple expanded iOS 18.7.7 to cover far more devices on April 1 - breaking its normal practice of using security updates to push users to the newest OS. Around 20% of iPhones remain on iOS 18 (some by choice, some because they can't run iOS 26), and Apple now considers the DarkSword threat serious enough to backport protections rather than leave those users exposed. The update covers iPhone XR through iPhone 16e and multiple iPad generations. Devices with Automatic Updates enabled get it without user action.

Check

Check your MDM for any managed iPhones or iPads still running iOS 18.4 through 18.7 without the 18.7.7 update.

Affected

iPhones and iPads running iOS/iPadOS 18.4 through 18.7 that haven't received the 18.7.7 update. Roughly 20% of all iPhones are still on iOS 18.

Fix

Push iOS 18.7.7 via MDM or ensure Automatic Updates is enabled. For maximum protection, upgrade to iOS 26.4 or enable Lockdown Mode on high-risk devices. Apple confirms Lockdown Mode blocks DarkSword attacks.