Anthropic recently announced Project Glasswing, an initiative that enables tech companies like Apple to use its new frontier AI model Claude Mythos Preview to find security vulnerabilities across operating systems and web browsers.
The Wall Street Journal today reported that researchers at cybersecurity firm Calif used Claude Mythos Preview to uncover a new macOS security vulnerability last month. Specifically, they used the model to write code that links together two macOS bugs in a way that resulted in what is known as a privilege escalation exploit.
The security researchers said the exploit would not have been possible with Mythos alone, as it still required their human expertise on top, but it nevertheless proves that AI can assist with discovering software vulnerabilities.
Apple said it was reviewing Calif’s report to validate the findings.
“Security is our top priority, and we take reports of potential vulnerabilities very seriously,” an Apple spokesperson told The Wall Street Journal.
It is unclear if Apple has already patched the exploit. Apple’s security notes for the macOS 26.5 update released this week mention a fix for a kernel-level vulnerability, and it credits Calif and Anthropic for discovering it. Yet, the report said that Calif only met with Apple this week and suggested that a fix was still coming.
We have reached out to Apple for comment.
Popular Stories
Apple Warns Canada’s Bill C-22 Could Force Encryption Backdoors
Apple and Meta have opposed a Canadian bill that the companies say could force them to create backdoor access to encrypted user data, should it pass through the country’s parliament. Proposed by Canada’s ruling Liberal Party, Bill C-22 contains provisions that could be similar to a UK data access provision order sent to Apple last year, depending on how they are implemented. Back in Feb…
Anthropic Rebuilds Claude Code Desktop App Around Parallel Sessions
Anthropic has released a redesigned Claude Code experience for its Claude desktop app, bringing in a new sidebar for managing multiple sessions, a drag-and-drop layout for arranging the workspace, and more. The new sidebar displays every active and recent session in one place, and users can filter by status, project, or environment, with the option to group sessions by project. A new side…
Anthropic Debuts Claude Design for Creating Prototypes, Pitch Decks, and Mockups
Anthropic today launched Claude Design, a new AI product for creating designs, prototypes, slides, and more. Claude Design uses Opus 4.7, a new AI model that was introduced earlier this week. Opus 4.7 is Anthropic’s most capable vision model, and it can see images in greater resolution. Anthropic says that it is “more tasteful and creative” when doing professional tasks. It is able to create …