iOS 16.3 lets you use a physical security key to secure your iPhone

iOS 16.3 Security Key and Advanced Data Protection
(Image credit: Apple)

Apple has released iOS 16.3, which includes a huge security feature that’s set to change how we store our whole lives online.

iCloud is home to some of our most trusted memories, secrets, and more, and the thought of a hacker getting hold of our cloud storage data puts fear into most users with an Apple ID.

To help protect this, iOS 16.3, and the correlating iPadOS 16.3 and macOS 13.2 updates, have brought along support for security keys to further enhance Apple ID protection. 

TechRadar Pro needs you!
We want to build a better website for our readers, and we need your help! You can do your bit by filling out our survey and telling us your opinions and views about the tech industry in 2023. It will only take a few minutes and all your answers will be anonymous and confidential. Thank you again for helping us make TechRadar Pro even better.

D. Athow, Managing Editor

iOS 16.3 Security Keys

“Security Keys for Apple ID allows users to strengthen the security of their account by requiring a physical security key to sign in," an extract from Apple's release notes reads.

Apple has long offered two-factor authentication (2FA) on its accounts, however this type of protection is still easy for scammers to get around with phishing emails and other types of hacks.

Users looking to take their account protection one step further can now choose to use a physical security key, which only they have access to, in order to prevent prying eyes for gaining unwanted access.

While this may be welcome news to many, it does come with caution for the less tech-savvy customers. That’s because you are now the holder of your encryption key, so if you were to lose it, you’d be locked out for good - Apple won’t hold a backup. 

The latest round of updates has also seen Advanced Data Protection expanded. It’s now able to end-to-end encrypt 23 iCloud categories, including Photos, which Apple says will “[protect] your information even in the case of a data breach in the cloud” for users worldwide after an initial US-only rollout.”

Other updates include bug fixes, an Emergency SOS improvement that should see fewer accidental phone calls, and support for the second-generation HomePod.

TOPICS
Craig Hale

With several years’ experience freelancing in tech and automotive circles, Craig’s specific interests lie in technology that is designed to better our lives, including AI and ML, productivity aids, and smart fitness. He is also passionate about cars and the decarbonisation of personal transportation. As an avid bargain-hunter, you can be sure that any deal Craig finds is top value!

Read more
An iPhone with a 10:30am alarm ringing next to an Apple Watch that displays the time as 12:42pm
Apple warns "extremely sophisticated attack" hits iPhones and iPads, so update now
Apple
"We will never build a backdoor" – Apple kills its iCloud's end-to-end encryption feature in the UK
Actalis SSL encryption
Apple is right not to bow down to the UK government's encryption backdoor request - but users should still be angry
Apple Siri
Update your Apple device now: iOS 18.3.2 fixes a flaw that could be exploited by hackers
Apple iPhone 16 Review
iOS 18.3 is here with a major change to how you enable Apple Intelligence
An option to add Ambient Music buttons to the iOS 18.4 Control Center.
Apple fixes dangerous zero-day used in attacks against iPhones and iPads
Latest in Security
Image depicting hands typing on a keyboard, with phishing hooks holding files, passwords and credit cards.
Microsoft warns about a new phishing campaign impersonating Booking.com
Computer Hacked, System Error, Virus, Cyber attack, Malware Concept. Danger Symbol
Meta warns of worrying security flaw hitting open source type software
Hand holding smartphone and scan fingerprint biometric identity for unlock her mobile phone
Biometrics add another layer of security to passwordless authentication
Data leak
Hacked Tata Technologies data leaked by ransomware gang
A close-up photo of an iPhone, with the App Store icon prominent in the center of the image.
Thousands of iOS apps found to expose user data and leak Stripe keys
China
Chinese hackers targeting Juniper Networks routers, so patch now
Latest in News
A graphic of the PC Gaming Show
Get ready for a bounty of PC games on June 8, as the PC Gaming show is back
A smartphone on a sofa showing the WhatsApp, Telegram and Signal apps
Forget AI – WhatsApp is planning a simple messages feature that could be its most useful upgrade in years
NordicTrack Ultra 1
The new NordicTrack Ultra 1 treadmill looks like it was designed by an architect and costs $15,000
An Nvidia GeForce RTX 5070
Nvidia RTX 5080 stock is so barren that retailers are holding competitions where you can "win" the right to buy one for MSRP
Assassin's Creed Shadows
Ubisoft shareholder accuses publisher of 'misleading investors', plans protest outside Paris HQ
Google Gemini AI logo on a smartphone with Google background
I made an AI version of Bilbo Baggins using Goggle Gemini for free, and shared a pipe with him outside Bag End – here’s what you can now do with Gems