Comment by serenissi@lemmy.world on Apple Quietly Introduced iPhone Reboot Code Which is Locking Out Cops

Apple quietly introduced code into iOS 18.1 which reboots the device if it has not been unlocked for a period of time, reverting it to a state which improves the security of iPhones overall and is making it harder for police to break into the devices, according to multiple iPhone security experts.

On Thursday, 404 Media reported that law enforcement officials were freaking out that iPhones which had been stored for examination were mysteriously rebooting themselves. At the time the cause was unclear, with the officials only able to speculate why they were being locked out of the devices. Now a day later, the potential reason why is coming into view.

“Apple indeed added a feature called ‘inactivity reboot’ in iOS 18.1.,” Dr.-Ing. Jiska Classen, a research group leader at the Hasso Plattner Institute, tweeted after 404 Media published on Thursday along with screenshots that they presented as the relevant pieces of code.

Wouldn’t that disrupt the usage of a phone as a server?

Interesting, tell me more please. I presume it requires loading a different OS image as standard iPhone/android OS images will pause apps and attempt to go into a deep sleep after a long enough period?

iPhone? Don’t these kill apps after a few minutes in background?

It’s not that simple. iOS has a really sophisticated system for deciding which things to keep in memory and which to evict, and it only does that when it needs more resources. Choosing which apps to kill is based on how recently an app was used, how much of share resources are in use, how often the app gets used, if it’s doing background processing, and other more subtle signals.

Usually if people notice apps being killed when in the background a lot it’s because one of the apps they’re switching to is using a lot of resources, which forces the eviction of other apps.

*seconds. KDE Connect dying the moment I turn off the iPad annoys me to this day.

That’s it!! Now I will NEVER use an iPhone as a server. 😋

A phone server that is disconnected from cellular is already broken anyways.

could be a simple hot spot cell backup, like for reporting network outage, remoting in to certain devices, etc. essentially a secondary ISP to report on main isp and troubleshoot. especially if you have smart devices you could reboot remotely.

An iPhone is not going to be that. This isn’t phones in general doing this, just iPhones.

There are also far more efficient devices for that. More cost effective and more energy efficient.

I understand wanting to reuse old devices for something, but there’s a limit to what is power efficient as well.

I’m not saying someone should, but they could. and necessity trumps efficiency every time.

When it comes to iPhones, it’s not a shouldn’t, it’s a can’t.

The way iOS limits background process means you can’t. I develop for iOS apps for a living.

There’s still you should never under any circumstances allow unsupported devices to be exposed to the internet or any way. Because that’s how we get bot nets causing DDOS attacks.

my comment wasn’t about iPhones. and it is possible to do what I said with android

You joke but people do that. I’ve seen people repurpose their old android phones to host small services on their home networks. I won’t comment on how reasonable it is because battery, but it’s a thing.

I really doubt an iOS update will affect people using android phones as servers.

It would affect me. I have an android virtual machine running on my iPhone.

Literally no difference between a low power SOC RaspberryPi or a fucking phone which is the same thing with a built-in display.

Except the price, which is much lower for the SBC, way much lower if one uses one of the lower end Orange Pi or Banana Pi SBCs.

Also you can put Linux on the SBCs (which always come unlocked) hence do way more with them as servers than if one has to use Android as the OS.

I mean, I can get it if people with the technical chops, love for technical challenges and an old and pretty much worthless Android phone, configure it as a server if only because “why not?!”, but it’s not exactly a great option considering that a 40 bucks SBC can do the same, only better, more easily and with far more possibilities (given that it will be running Linux rather than Android).

PS: Actually somebody below mention mobile network connection, which, thinking about it, would be a good reason to use an old Android phone as a server since it has built-in support for 3G (unless it’s quite old) whilst the SBC needs it add to it which might be a problem for the cheaper SBCs (just wondering about how I would get around to do it, I think you need to connect a USB dongle to it and it has to be something compatible with Armbian Linux)

When you consider the price of a used android (ie. Oneplus 6T for $80 on ebay) and compare it spec for spec with a raspberry pi, it’s actually a really good deal. Like you get:

Built in backup power supply (battery)
8-core power-efficient CPU (SDM845)
Embedded sensors (microphone, magnetometer, gyro)

The way I set mine up is to run the server directly on Android using Termux, having an app autostart Termux on boot, and making sure to disable battery optimizations on the app. And then I just had the phone always plugged into the outlet to maintain the battery (and of course android would just trickle charge / disable once full charged).

Of course this isn’t perfect because you still have much more variability in play (at the OS level) than an RPi (along with not having a standard environment like debian unless you use proot), but it overall is a very powerful setup that works quite well.

I don’t think the sensors really matter for a server but the rest makes some sense.

Still, 80 bucks will buy you quite literally a Mini-PC (a really crummy one, granted) which can run more server tasks because it has as much or more memory and storage and isn’t hindered by there being an Android OS layer there doing nothing useful, and which is absolutelly and 100% under your control because it boots into your OS of choice.

Half than that will buy you a crummy SBC which probably de facto has as much capability to run server tasks as that Oneplus (it’s weaker but doesn’t have Android there eating up resources) though in my experience those things tend to be a bit finicky.

I don’t think it’s actually worth it to spend $80 on an used phone to use as a server (unless you do need UPS-like features or built-in mobile nertwork access) since you quite literally have better options brand new for that money, but if you have one around it can make sense even if it’s a bit more work getting it going and is not fully under your control (unless we’re talking about something jailbroken where you can install Oxygen or Lineage on, so a Pixel would probably be a better choice).

That said, there is a certain technical elegance in the whole notion of repurposing an Android Phone to be a home server.

What exactly is the phone fucking?

Mostly my mental health.

To shreds we all say. Hope you are well though.

oh fuck I can’t stop laughing

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Apple Quietly Introduced iPhone Reboot Code Which is Locking Out Cops(www.404media.co)

Technology

!technology@lemmy.world

Our Rules

Approved Bots

Community stats

Community moderators