Skip to main content

Update your iOS device to 9.3.5 as it fixes serious security vulnerabilities

apple ios 935 update os updates
Image used with permission by copyright holder
Got a notification to update your iOS device to 9.3.5? You really shouldn’t wait to install it — the new version fixes three security vulnerabilities that were actively exploited by an Israel-based company in an episode likely involving the UAE government and a spy operation.

The NSO Group sells surveillance software that utilizes three zero-day vulnerabilities in iOS — it’s something that rarely happens in the wild, according to the team of researchers that reported the flaws to Apple. “Zero days” means the flaws were previously unknown, and a company had no time, or “zero days,” to fix them.

It all started with Ahmed Mansoor, a well-recognized human rights defender based in the United Arab Emirates. On August 10 and 11, Mansoor got an SMS on his iPhone “promising “new secrets” about detainees tortured in UAE jails if he clicked on an included link.

Mansoor didn’t click the link — he sent it straight to Citizen Lab researchers housed in the University of Toronto. If Mansoor had followed the link, the exploit would have remotely jailbroken his iPhone 6, and installed spyware.

“Once infected, Mansoor’s phone would have become a digital spy in his pocket, capable of employing his iPhone’s camera and microphone to snoop on activity in the vicinity of the device, recording his WhatsApp and Viber calls, logging messages sent in mobile chat apps, and tracking his movements,” according to Citizen Labs’ report.

The team worked with researchers at Lookout Security and managed to track the exploit back to NSO Group, a “cyber-war” company that sells Pegasus, a government-exclusive “lawful intercept” spyware product. Oddly, NSO Group is owned by an American venture capital firm named Francisco Partners Management.

“The high cost of iPhone zero-days, the apparent use of NSO Group’s government-exclusive Pegasus product, and prior known targeting of Mansoor by the UAE government provide indicators that point to the UAE government as the likely operator behind the targeting,” the researchers write in the report.

Immediately after discovering Trident, Citizen Labs and Lookout Security notified Apple. The Cupertino company said it would address the vulnerabilities — and 10 days later, Apple patched them up in iOS 9.3.5. It’s likely the last update to iOS 9, as iOS 10 is likely to release soon.  

The exploit and patch come weeks after Apple announced its first bug bounty program, which is to begin as an invitation-only process with the company doling out rewards as high as $200,000 for discovered vulnerabilities.

The update is available to all devices running iOS 9 through an over-the-air update.

Editors' Recommendations

Julian Chokkattu
Former Digital Trends Contributor
Julian is the mobile and wearables editor at Digital Trends, covering smartphones, fitness trackers, smartwatches, and more…
I found 16 new widgets for iOS 17 that you have to try
A selection of widgets on an iPhone home screen.

Widgets have long been a popular feature on iPhones. Since the release of iOS 17, they have become more interactive, providing a more engaging experience. Interactive widgets allow you to perform important actions from your iPhone's home screen. For example, you can complete your to-do lists, play and pause media and podcasts, control your smart home devices, and much more — all without opening any apps.

Interactive widgets are not limited to Apple's built-in apps on iOS 17. Third-party developers are also adopting this new feature. Although not all apps offer interactive widgets, there are plenty that do. Here are a few interactive widgets that are worth exploring.
Calculator 17

Read more
Your iPhone just got a new iOS update, and you should download it right now
iPhone 15 Pro display with iPhone 15 Pro Max in background.

Apple has just released a new security update, iOS 17.4.1. This comes a little over two weeks after iOS 17.4, which was a big update. iOS 17.4.1 doesn't add any new features, but it's still an important update you'll want to download as soon as you can.

With iOS 17.4.1, Apple states that the update “provides important bug fixes and security updates and is recommended for all users.” Apple doesn’t mention any specifics of these bug fixes, but more details on what this security update addresses may be revealed at a later date.

Read more
How to use iOS 17 FaceTime gestures (and what they look like)
Video reactions in macOS Sonoma, with the balloons effect in use.

iOS 17 brought a number of new iPhone features and optimizations to the table, and one of these tweaks adds a few cool layers of entertainment to your FaceTime experience. It’s called FaceTime gestures, and once it’s set up correctly, you’ll be able to send 3D animations to your friends and family during FaceTime video calls. You’ll even be able to trigger the animations with physical gestures!

Getting your phone ready for action doesn’t take much time or effort, but we put this guide together to walk you through the process nonetheless. 
How to make a FaceTime gesture in iOS 17

Read more