Apple released iOS 26.5.2 on Monday, June 29, almost a month after launching iOS 26.5.1 to people with devices from the iPhone 17 lineup or an iPhone Air. Apple writes online that iOS 26.5.2 brings over two dozen security fixes to your device, and Anthropic's Claude AI model helped find one of them.
You can download iOS 26.5.2 now by going to Settings and tapping General. Next, select Software Update, tap Update Now and follow the prompts on your screen.
Apple writes in the update's release notes that this update offers security fixes, many of which are related to malicious web content vulnerabilities.
A closer look at the update's common vulnerabilities and exposures report shows that many of the patches address issues in WebKit, the engine that powers Safari and other third-party browsers on iOS. Anthropics' AI model Claude is credited for assisting in the discovery of one particular issue, which was related to a potential memory corruption exploit.
That discovery is the latest development in a busy few months for Anthropic's AI models. In April, the company delayed the release of its Claude Mythos model to the public because its ability to find vulnerabilities represented a significant cybersecurity threat. It then released Fable 5 and Mythos 5 in June, before taking them down about a week later in the wake of government restrictions. Mythos 5 was then cleared for use on Friday, June 26, though only for a group of select companies and agencies.
As a result of that developing technology, we could start seeing Claude's name appear more often on these CVE reports in the future.
For more on iOS, here's what to know about iOS 27 before its fall release and your cheat sheet for iOS 26. Watch this: The Reality of WWDC26: Reactions to Siri AI