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Apple is working on two security features for iOS 26 that are designed to more reliably protect iPhones from new threats. Internal code discovered by Macworld and 9to5Mac reveals evidence of automatic background installations and updates of critical components without rebooting. This moves Apple security closer to real-time protection and removes barriers that previously kept devices unprotected for longer.
Until now, Apple has primarily released security updates in conjunction with new iOS versions. This brought with it disadvantages: On the one hand, the development time for new versions delays the delivery of security fixes. On the other hand, devices remained vulnerable until updates were actively downloaded and installed. The first change came in 2022 with Rapid Security Responses . However, these standalone patches also had to be installed manually. This left many iPhones unprotected for longer. iOS 26 is now intended to significantly improve this.
Background: Why Apple is following suit
Previous security strategies had two weaknesses. First, the dependence on the development cycle of new iOS versions was a problem. Security vulnerabilities could only be closed once the version was ready. Second, users were required to take action and install updates. Those who didn't do so immediately left their iPhones unnecessarily open to attacks. This is precisely where Apple is now targeting.
Background Security Improvements
In beta version 26.1, Macworld found code describing a new system called Background Security Improvements. It's designed to automatically install security updates in the background, without requiring any manual intervention. This means iPhones can install updates quietly as soon as Apple releases them. Rapid Security Responses previously had to be downloaded via the Settings app like regular updates, but this intermediate step will no longer be necessary. The code also indicates that this new feature is being rolled out not only to iOS but also to macOS.
Security updates without rebooting
9to5Mac also found evidence of another security change in the iOS 26 beta versions. According to the report, Apple is working on updating important system components independently of reboots. Previously, a device had to be rebooted after updates for them to take effect. With the new approach, patches should take effect immediately. This makes iPhones more secure faster because the time between release and active protection is further reduced.
Interaction of the two changes
If Apple introduces both features simultaneously, it will provide virtually seamless protection. Security updates are installed automatically, in the background, and without any intervention. Additionally, important components can be updated directly without the need for a reboot. This significantly shortens the time window during which an iPhone remains vulnerable. At the same time, everyday usability is improved, as annoying update prompts or interruptions are reduced.
Rapid Security Responses in comparison
Rapid Security Responses were a first step toward delivering security updates independent of iOS versions. However, they had to be manually initiated and confirmed. Background Security Improvements go a step further: They install patches automatically and invisibly in the background. Combined with reboot-free updates, this creates a system that continuously maintains security.
Open questions
It's still unclear how Apple will implement these features in detail. It remains to be seen whether there will be options to view background updates or, if necessary, reset them. Questions about battery consumption, mobile data usage, and performance are also still open. It remains to be seen how Apple will integrate the feature into corporate environments and how transparently the updates will be displayed in the system.
Apple introduces a new security concept with iOS 26
With iOS 26, Apple is fundamentally changing the security model for iPhones. Instead of tying updates to release cycles and active user interactions, the system handles the installation automatically in the background. With the added ability to update core components without rebooting, security becomes more continuous, faster, and more reliable. For iPhones, this means better protection against new threats – the moment Apple releases a patch. (Image: Shutterstock / NicoElNino)
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