Last year, a series of articles by Wall Street Journal reporters Joanna Stern and Nicole Nguyen highlighted a troubling form of crime targeting iPhone users. A thief would discover the victim’s iPhone passcode, swipe the iPhone, and run. With just the passcode, the thief could quickly change the victim’s Apple ID password, lock them out of their iCloud account, and use apps and data on the iPhone to steal money, buy things, and wreak digital havoc.
In essence, Apple allowed the passcode, which could be determined by shoulder surfing, surreptitious filming, or social engineering, to be too powerful, and criminals took advantage of the vulnerability. It’s best to use Face ID or Touch ID, especially in public, but some people continue to rely solely on the passcode.
Apple has now addressed the problem for iPhone users with the new Stolen Device Protection feature in iOS 17.3. It protects critical security and financial actions by requiring biometric authentication—Face ID or Touch ID—when you’re not in a familiar location like home or work. The most critical actions also trigger an hour-long security delay before a second biometric authentication. We recommend everyone who uses Face ID and Touch ID turn on Stolen Device Protection. The feature is not available for the iPad or Mac, but neither is as likely to be used in places like the crowded bars where many iPhones have been snatched.
The location aspect of Stolen Device Protection is key. When you’re in a “significant location,” a place your iPhone has determined you frequent, you can do everything related to security and financial details just as you have been able to in the past, including using the passcode as an alternative or fallback.
However, when you’re in an unfamiliar location, as you would likely be if you were out in public where someone might steal your iPhone, Stolen Device Protection requires biometric authentication to:
Some actions have even more serious consequences, so for them, Stolen Device Protection requires biometric authentication, an hour security delay—shown with a countdown timer—and then a second biometric authentication. The delay reduces the chances of an attacker forcing you to authenticate with the threat of violence. You’ll need to go through the double authentication plus delay when you want to:
There are a few caveats to keep in mind:
Before you get started, note that Apple says you must be using two-factor authentication for your Apple ID (everyone should be anyway), have a passcode set up for your iPhone (ditto), turn on Face ID or Touch ID, enable Find My, and turn on Significant Locations (Settings > Privacy & Security > Location Services > System Services > Significant Locations), although this last one doesn’t actually seem to be required.
Then, go to Settings > Face ID/Touch ID & Passcode, enter your passcode, and tap Turn On Protection. (If it’s enabled, tap Turn Off Protection to remove its additional safeguards.)
Once Stolen Device Protection is on and you’re in an unfamiliar location, the actions listed above will require either biometric authentication or two biometric authentications separated by the hour-long security delay.
There is one group of people who should not turn on Stolen Device Protection: those for whom Face ID or Touch ID don’t work. Most people have no trouble with Apple’s biometric technologies, but some people have worn off their fingerprints or have other physical features that confuse Touch ID or, less commonly, Face ID.
If that’s you, stick with our general recommendation for discouraging possible iPhone thefts: Never enter your iPhone passcode in public where it could be observed.
(Featured image by iStock.com/AntonioGuillem)
Social Media: In iOS 17.3, Apple has introduced Stolen Device Protection to discourage iPhone thefts enabled by a revealed passcode. It requires additional biometric authentication, and we recommend that everyone who uses Face ID or Touch ID enable it.