Apple Inc. has released its first background security update for iPhones, iPads and Mac computers, introducing a new approach to addressing software vulnerabilities without requiring full system upgrades. The update targets a flaw in the Safari browser and has already begun rolling out to users running the latest operating systems.
According to a security advisory issued by the company, the vulnerability was discovered within WebKit, the core engine that powers Safari and several other applications. Apple noted that the flaw could allow a malicious website to access sensitive data from another site open within the same browsing session if successfully exploited.
The company described the new background security improvements as lightweight updates designed to deliver critical fixes between major software releases. Unlike traditional updates, these patches are deployed quietly in the background and require only a quick restart of the device, making them less disruptive for users.
Apple explained that the feature is available on devices running recent versions of iOS, iPadOS and macOS, specifically version 26.1 and above. The updates are expected to cover key system components such as Safari, WebKit and other essential libraries that may require urgent security attention outside the regular update cycle.
While Apple did not disclose the specific circumstances that led to the discovery of the bug, the rollout marks a significant shift in how the company manages security risks. Industry observers say the move reflects a broader effort to strengthen user protection by delivering faster and more frequent security fixes across its ecosystem.