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iOS 26.3.1 (a): Apple's First Background Security Improvement Fixes This On Your iPhone
Apple's first Background Security Improvement patches a WebKit flaw allowing Same Origin Policy bypass on iOS, iPadOS, and macOS, enhancing device security between major updates.
- On Tuesday, March 17, Apple released iOS 26.3.1 for iOS, iPadOS, and macOS, fixing a WebKit flaw that could bypass the Same Origin Policy.
- Introduced with iOS 26.1 in November, Background Security Improvements are lightweight patches for Safari, WebKit, and system libraries deployed between full software updates, and Apple has experimented with standalone security releases in recent years.
- To find the patch, open Settings > Privacy & Security and enable Background Security Improvements; users with Automatic Install get the update automatically or can install it manually.
- Apple recommends everyone download the update, as installing such fixes reduces the risk to devices and data.
- Observers note this echoes Apple's Rapid Security Responses, but Apple hasn't issued one since July 2023 and largely returns to fixes with regular updates.
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Since iOS 26.1, Apple can play patches in the background instead of running a complete update. Now, a critical webkit gap is fixed via this background security improvement system. However, the security update is not easy to find.read more on t3n.de
In a move to protect users, Apple launched its first-ever "security enhancements in the background" update to address a gap.
·United Arab Emirates (the)
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Apple has this week a fix for WebKit vulnerability (CVE-2026-20643), which allowed a malicious site to bypass browser protections and access data from another site. The patch is installed in the background, without full system update.
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