Skip to main content

iOS 17.5 just launched with a huge security feature for your iPhone

Apple iPhone 15 Plus and Apple iPhone 15 Pro Max seen from the back.
Apple iPhone 15 Plus (left) and Apple iPhone 15 Pro Max Andy Boxall / Digital Trends

Apple has just released the iOS 17.5 update for iPhones, which brings a host of new features. For European Union residents, it enables Web Distribution, which means you can sideload apps from the internet and won’t be limited to the App Store.

Recommended Videos

Another notable addition is Repair State, which allows users to keep the Find My tracking system enabled when sending in a device for repairs. For iPhone users across the world, the latest update brings an offline mode to the Apple News+ app, allowing users access to the News+ tab and the Today feed even when they are not connected to the internet.

But the most notable addition is support for Cross-Platform Tracking Detection notifications. This crucial safety feature automatically detects if an unknown tracker is traveling with you, nearby.

An AirTag sitting next to an iPhone.
Apple

So far, Apple has only enabled this system for AirTags, following reports of stalking that employed hidden AirTags. In some scenarios, Apple’s object tracker was also used for car thefts, among other criminal behavior.

“Cross-Platform Tracking Detection delivers notifications to users if a compatible Bluetooth tracker they do not own is moving with them, regardless of what operating system the device is paired with,” according to the iOS 17.5 release note.

This safety feature is part of a collaborative effort between Google and Apple. In 2023, the two companies released a draft specification on a detection protocol for Bluetooth-based trackers to prevent abusive use.

An AirTag attached on a keyring
Digital Trends

Dubbed the Detecting Unwanted Location Trackers, the proposals put the Bluetooth protocol at the center for altering users about unknown Bluetooth-based devices moving with them. Thanks to the unified approach, iPhones will be able to detect AirTags as well as trackers from other brands, such as Samsung and Tile, to name a few.

The protocol is not limited to Bluetooth-based trackers only. Instead, it also leaves the doors open for GPS-based devices and those harnessing other media like Wi-Fi and cellular lines, among others.

In the wake of widespread concerns, Apple made some tweaks to the alert system for AirTags, but it wasn’t a fool-proof method. With iOS 17.5 bringing support for a standardized Bluetooth tracker protocol, iPhone users no longer have to worry about hidden trackers from an obscure brand.

To download iOS 17.5 on your iPhone now, open the Settings app, tap General, and then tap Software Update. Wait a couple of seconds, and the iOS 17.5 update should be there waiting for you.

Nadeem Sarwar
Nadeem is a tech and science journalist who started reading about cool smartphone tech out of curiosity and soon started…
My Android 16 update made me jealous of iOS 26… but it shouldn’t
Deep down, I know my disappointment is irrational
The Android 16 logo on the screen of the Pixel 9 Pro Fold

I've just downloaded Android 16 on my Pixel 9 Pro Fold. As someone who’s a sucker for a software update this should be a momentous occasion - so why am I feeling flat?

Whether it's an update for one of my favourite apps, or a complete operating system overhaul, I love pouring over change logs to see what's new and diving into features.

Read more
WWDC 2025: Apple announces iOS 26, macOS 26, watchOS 26 and more
Major updates to iOS, macOS, watchOS, iPadOS, tvOS and visionOS
WWDC 2025 logo

Apple kicked off WWDC 2025 with its keynote presentation at its annual World Wide Developer's conference, and it was a bumper affair.

We were treated to a raft of updates across all of the firm's software platforms, as we were introduced to iOS 26, iPadOS 26, watchOS 26, macOS 26, tvOS 26 and visionOS 26.

Read more
Will my iPhone get iOS 26? Here’s every supported model
We've got the full list of iOS 26 supported devices - find out if you're getting the new iPhone update
iOS 26 features on a series of iPhone screens

Apple announced iOS 26 at WWDC 2025, and the new iPhone update comes with a fresh new 'Liquid Glass' look and plenty of features - and there are loads of iOS 26 supported devices, which is great news.

And no, you haven't missed a volley of updates since iOS 18 in 2024. Apple has skipped a bunch of numbers, so instead of giving us iOS 19 in 2025, we got iOS 26 alongside iPadOS 26, macOS 26, watchOS 26 and tvOS 26. In short, Apple's brought its operating system numbering into line. Nice.

Read more