If you own a relatively new iPhone, this week you should have received a notification that the latest iOS 13 update is ready to download. Besides the more obvious additions—like the introduction of dark mode, and the unexpected joys of Apple Arcade—it also features a raft of security and privacy enhancements.

The reputation of iOS security may have taken some dings of late, but it's still one of the most secure consumer operating systems available. Here are all the ways the latest version keeps you even more protected.

Sign In With Apple

Photograph: Apple

As well as using Facebook, Google, and Twitter to sign into new apps and services, you can now sign in with Apple too. The option limits data passed over to the third party to your username and email address, and Apple will even create a temporary email address for you if you like—if you start getting unwanted messages, you can just shut it down and walk away.

Fine-Tune Location Controls

You now get more granular control over how apps access your current location. In addition to being able to grant that permission all the time or only when the app is running, you can now also allow it just once on a temporary basis. The next time the app needs your location, it'll have to ask for it again.

As in iOS 12, you'll get occasional pop-ups reminding you which apps are tracking your location. In iOS 13, though, you can see more of the data that the app actually logs, as well as the app's explanation for why it needs that data in the first place. If you don't buy the argument, you can block access.

Block Bluetooth Access

After you've installed iOS 13, you might see a flurry of apps asking for permission to transmit data over Bluetooth—data that can, in some cases, be used to track where you are, via Bluetooth beacons in stores and elsewhere. If you're not happy with granting permission, turn it off. Note that the permission to be able to transfer data over Bluetooth is separate from streaming audio over Bluetooth, so you won't suddenly lose your connection to your headphones.

Stay Safe From Wi-Fi Tracking

As with Bluetooth, in a pre-iOS 13 world some unscrupulous apps were able to track your location without actually asking for permission to do so. Instead, they would take note of the public Wi-Fi networks you passed by. This has now been disabled in iOS 13. There's no option for it or setting to toggle; the privacy feature is baked in automatically.

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