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About Stolen Device Protection for iPhone

54 points| drclau | 2 years ago |support.apple.com

80 comments

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stirlo|2 years ago

This also solves a somewhat unique problem I experienced recently with iCloud keychain where all your passwords are only as secure as your passcode (and anyone that knows it).

I had to hand my phone over to a third party repairer. This would mean they needed to know my passcode so I wanted to lock down the phone to allow them to perform whatever diagnostic steps they might need but to restrict access to the wallet and iCloud keychain.

The first part was actually quite simple using a separate screen time passcode to restrict all apps bar the camera and any that they needed. The frustrating part was that the settings app itself cannot be blocked by screentime (I guess as thats where you configure the restrictions) and as iCloud keychain passwords are accessed from settings there was no way to block access to them.

With this update I could (somewhat) safely supply my passcode while being relatively confident that my keychain passwords were not viewed.

PlunderBunny|2 years ago

I think some (all?) Android phones allow you to put the phone into 'repair mode', which allows the repairer to access critical features without unlocking the entire phone. I'd like to see a feature like that for iPhones too.

PakG1|2 years ago

What hardware repair would require handing over your passcode? If it's to test that the phone is working fine after the repair, can't you test it yourself in front of them before you pay? If they were doing software repairs, what would be the nature of the repair? Hard for me to imagine anything to repair software-wise, given how iOS is.

r00fus|2 years ago

At least the passcode section of settings can indeed be restricted by ScreenTime. I've done this as my aging parents often want change the passcode then forget their new passwords (and sometimes get paranoid).

rollcat|2 years ago

You took unnecessary risk. Wipe your device before handing it over, and restore it from a backup after the repair.

Also consider evil maid, or other kinds of backdoors (like jailbreaks).

e40|2 years ago

Requires updating to iOS 17.3. (Released today, I believe.)

stirlo|2 years ago

The update is showing available and downloading onto my devices right now.

artdigital|2 years ago

Way overdue feature IMHO. A reason why I didn’t want to use passcodes or keychain for passwords was that once someone knew my passcode to unlock my phone, they could access all my accounts

1Password at least uses a different password and isn’t unlockable with passcode alone

TheNewsIsHere|2 years ago

Nitpicking here. Older 1Password versions do allow unlocking using the iOS passcode if biometry fails, but I’m not sure it was ever intended as a feature. It isn’t a UI that is built into 1Password though, it’s the iOS fallback UI for that scenario (which looks very similar to the SIM PIN unlock screen).

A _lot_ of apps did and still do fall back to iOS passcode authentication when biometry fails. It does seem like more developers are disabling this, however.

paxys|2 years ago

Neat feature I guess, but how long before thieves realize that they can just look up your home or work address from the Maps or Contacts app and go stand near it to get around these restrictions?

TheNewsIsHere|2 years ago

Or for high value targets, just outright hold you hostage for an hour.

PlunderBunny|2 years ago

Regarding the actions that required FaceID/TouchID once the protections are enabled, what happens if the biometric authentication fails? Sometimes I can't unlock my phone with FaceID, and I have to resort to using my passcode after three attempts. Will it now allow unlimited attempts in the specific scenario covered by the new feature?

(I realise this means I can still get into my phone, just that I might not be able to access certain features - e.g. change passwords - if I'm not at one of my usual locations).

gnicholas|2 years ago

My experience with biometrics in general is that it gives you X tries, and then asks for a password. But IIRC if you close the app, and then re-open it, it will give you another X tries with biometric. It isn't like failed password attempts, where it will rate-limit you after a few misses.

fori1to10|2 years ago

This is also something I don’t understand. Would like to know the answer

dhdhdudhsg|2 years ago

I’ll be using this but what a stupid exception imo. I work in a big building where anyone could walk in without id and simply defeat the protection. Hell, a disgruntled coworker contractor or customer could be in on it.

> When your iPhone is in a familiar location, these additional steps are not required, and you can use your device passcode like usual. Familiar locations typically include your home, work, and certain other locations where you regularly use your iPhone.

shuckles|2 years ago

I don’t think iPhone thieves are smart enough to connect a snatched phone’s owner’s identity to a location nor are they stupid enough to regularly go to a frequent location to unlock a stolen device. In practice, a change like this will help a lot. Most stolen phones get put into the Shenzhen parts supply chain, and it’s probably not economical for the middlemen to do bespoke work to unlock the device.

kemayo|2 years ago

This is a pretty direct response to the WSJ's iPhone theft story from last year[1], which was focused on people managing to shoulder-surf your passcode while you're in a public place, steal your phone, then use your passcode to reset your Apple ID password (thus locking you out of being able to report the phone as stolen). It apparently relied on multiple people and a certain amount of social engineering -- one party managing to get the phone into a passcode-required state, another to see it entered, and a third to actually lift the phone.

The hope would thus be that although someone could walk into your workplace and steal your phone off your desk, they would be much less likely to have been able to watch you enter your passcode first.

[1]: https://www.wsj.com/articles/apple-iphone-security-theft-pas...

gnicholas|2 years ago

Is there a website that has a list of the steps you should take if your phone is stolen? My first instinct would be to use someone else's phone to google "what to do if your iPhone is stolen".

But I wouldn't know how to determine if the instructions I was seeing were incomplete, or outdated. Is there a trusted, frequently-updated site that we can easily remember and plug into our friends' phone if and when this terrible thing happens to us?

NoZebra120vClip|2 years ago

I have an Android phone, and a few months ago I left it behind in a Waymo autonomous vehicle.

Awhile ago, I added the "Find My Device" site to my bookmarks and I'd tested it out a few times. So I started there. And I also used Google Voice to place a voice call, so when it didn't ring in my home, I knew it wasn't here.

The Waymo passenger answered and there was much giggling. She kept saying she didn't know what to do. I said just leave it in the car.

So, knowing it was out of my control, I sent the remote wipe command, and hoped for the best. It turned out, the passenger also used the "Emergency Call" to send a text to my emergency contact. She offered to leave the phone in a pharmacy across town! I don't know how that would've helped.

Anyway, I did recover the phone at the Waymo Depot. It had obeyed the remote-wipe command and it was factory reset, with a full battery. It actually came out better-than-new, as the subsequent updates applied a few nice features.

natch|2 years ago

So the next step for the criminals (the ones who steal both the passcode and phone) is to find your address (often stored in Contacts, or available in your Amazon account) then physically go there and lurk nearby while finishing their pwning steps.

I may be missing something. But if not it seems like Apple is now incentivizing a scenario where thieves will physically go to the location of their victims homes in order to circumvent some of these measures.

landr0id|2 years ago

I know somebody who was recently drugged and had their iPhone stolen (amongst other things) while on a trip in New Orleans. While he has no recollection of the night, this may have mitigated the damage they were able to cause and the trouble he had to go through to recover his Apple ID.

I doubt the thieves would physically travel to his home for the phone, but I suspect that this will lead to blackmailing scenarios where the thieves exfil risqué or compromising content and threaten to send it to sensitive contacts if you don't unlock the phone the next day.

dakial1|2 years ago

This is time sensitive. The criminals would lose too much time doing that. At least for the “criminal use case “ in Brazil, where they want to quickly access your bank app, this wouldn’t work.

dakial1|2 years ago

I don’t know if Brazil was one of the places that convince Apple to do that, but we have a huge problem of mobile phones robbery with that aim to access the bank apps to drain accounts dry.

In a quite resourceful way (social engineering, process and system exploits) these criminal organizations will jump all the hoops (2FA, Face Recognition) and manage to access most of those apps.

deeth_starr_v|2 years ago

It’s a big problem is the USA also. It’s been in the news in prime time for about a year. They’ve been really slow to address it

baicunko|2 years ago

This took quite a while to get ready but I do believe it prevents 99.9% of the theft cases mentioned. I am downloading it right now.

madeofpalk|2 years ago

> I do believe it prevents 99.9% of the theft cases mentioned

I don't believe so, or at least where I am from. This 'only' provides additional protection against cases where thieves know your device passcode. I've had my phone stolen from me twice where they couldn't have known my passcode and couldn't remove it from Find My, and it was never seen again.

dylan604|2 years ago

Even if it prevents reselling the phone, it doesn't prevent the phone from being stolen. It would be a dumb criminal to leave you your phone to allow you to immediately call the police if you've been mugged. Just take the phone, trash it literally placing it in a bin or destroying it or both.

At the end of the day, you still don't have the phone whether the thief profits from it or not. All this will do is prevent criminals up to date with this info to not try to resell it. It does not prevent them from taking/destroying it.

aetherspawn|2 years ago

Available from iOS 17.3 for anyone wondering.

I went to settings and could not find the option to enable this, but it turns out I was still on 17.2

lokar|2 years ago

A one hour delay? Really? I don’t get it, how does that really help?

metalcrow|2 years ago

If you're robbed at gunpoint, and they demand you unlock your phone for them, this protection means they would have to kidnap you for at least an hour to then unlock it again. The former happened pretty regularly, but upgrading to kidnapping is a lot riskier, more dangerous, and invites a serious police response.

stouset|2 years ago

> In the event that your iPhone is stolen, the security delay is designed to prevent a thief from performing critical operations so that you can mark your device as lost and make sure your Apple account is secure. Learn what to do if your iPhone is lost or stolen.