Apple Silicon Security Flaw Discovered in iPhone 12 and M2 MacBook Air
A security vulnerability that could allow attackers to access sensitive data has been discovered in some Apple silicon GPUs.
A recent investigation by cybersecurity firm Trail of Bits discovered the security flaw, named "LeftoverLocals," which allows attackers with local access to a device to retrieve data processed in the GPU's local memory. The issue is particularly concerning because of the expanding use of GPUs in processing Large Language Models (LLMs) for AI applications.
According to the firm, the vulnerability enables an attacker to eavesdrop on another user's interactive LLM session, potentially accessing sensitive information. Apple told Wired that newer devices with the A17 Pro and M3 chips have received patches to address this flaw, and Trail of Bits found that the third-generation iPad Air had also received a fix.
Most older models with vulnerable GPUs, including the iPhone 12 and M2 MacBook Air, are still vulnerable. While Apple has taken steps to patch certain devices, it remains unclear if and when all impacted models will receive security updates to directly address the problem.
The nature of the LeftoverLocals vulnerability is such that it requires installation of a malicious app or physical access to the device. As always, Apple encourages users to install the latest available software update to ensure they receive security fixes.
Popular Stories
Apple is "drastically" cutting production of the iPhone Air and shifting focus toward the iPhone 17 and iPhone 17 Pro models, Nikkei Asia reports.
The business publication claims to have learned of a major cut to iPhone Air production motivated by weaker-than-expected consumer interest, nearly to "end of production levels." Despite early reports of the iPhone Air selling out within hours of...
With the fourth betas of iOS 26.1, iPadOS 26.1, and macOS 26.1, Apple has introduced a new setting that's designed to allow users to customize the look of Liquid Glass.
The toggle lets users select from a clear look for Liquid Glass, or a tinted look. Clear is the current Liquid Glass design, which is more transparent and shows the background underneath buttons, bars, and menus, while tinted ...
Back in 2012, an Apple retail employee named Sam Sung went viral because his name is similar to Samsung, one of Apple's main competitors. In a recent interview with Business Insider, he detailed that period in his life, how Apple responded, and he explained why he ultimately changed his name.
Someone posted an image of Sung's Apple business card on Reddit in 2012, and it spread rapidly....
General Motors began phasing out support for CarPlay in its electric vehicles back in 2023, leading to complaints from iPhone users, but the company has no plans to back down.
In fact, GM is going further and plans to remove CarPlay from all future gas vehicles, too. In an interview with The Verge, GM CEO Mary Barra said that the company opted to prioritize its platform for EVs, but the...
Apple plans to launch a new type of iPhone every year for the foreseeable future, according to an Asia-based source.
The detailed information was shared by the account "yeux1122" in a blog post on the Korean platform Naver, citing domestic trend and component research companies.
Corroborating other reports, Apple will apparently launch its first foldable iPhone in 2026, featuring a...
With the fourth beta of iOS 26.1, Apple added a toggle that makes Liquid Glass more opaque and reduces transparency. We tested the beta to see where the toggle works and what it looks like.
Subscribe to the MacRumors YouTube channel for more videos.
If you have the latest iOS 26.1 beta, you can go to Settings > Display and Brightness to get to the new option. Tap on Liquid Glass, then...
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more.
iOS 26.1 is currently in beta testing. The update will likely be released in the first half of November, and it is compatible with the iPhone 11 series and newer, but some...
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across the Apple Music, Calendar, Photos, Clock, and Safari apps.
More features and changes will follow in future ...
Even though we're at the fourth beta of iOS 26.1, Apple is continuing to add new features. In fact, the fourth beta has some of the biggest changes that we'll get when iOS 26.1 releases to the public later this month. We've rounded up what's new below.
Liquid Glass Transparency Toggle
Apple added a toggle for customizing the look of Liquid Glass. In Settings > Display and Brightness,...
