this post was submitted on 15 Apr 2025

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Google rolling out auto-restart security feature to Android (9to5google.com)

submitted 19 hours ago by baatliwala@lemmy.world to c/android@lemdro.id

23 comments fedilink hide all child comments

top 23 comments

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[–] jlh@lemmy.jlh.name 9 points 13 hours ago (2 children)

CalyxOS has this too. Choose between 1 and 72 hours.

[–] higgsboson@dubvee.org 5 points 10 hours ago

GrapheneOS has had it at least a year or so. For that matter it could be pulled from there.

[–] Turret3857@infosec.pub 4 points 12 hours ago (1 children)

Ive got mine set to 8, so it usually does it while I'm asleeo

[–] jlh@lemmy.jlh.name 2 points 12 hours ago* (last edited 12 hours ago) (1 children)

Yeah, I have mine set to 12 to be a little less tight. Not so short that it reboots on a regular basis, but I think 12 hours would be pretty short for a thief to get my phone to a cracker in time. (assuming they even have access to tools to crack modern calyxos) I always power off my phone off going through customs.

[–] taaz@biglemmowski.win 2 points 9 hours ago (1 children)

Sadly, it seems todays law allows them to force you to unlock it, otherwise they straight up treat you as a terrorist. At least in UK it seems (source: Britannica youtuber getting detained when returning home to UK)

[–] jlh@lemmy.jlh.name 2 points 6 hours ago

Yeah, my main concern is visiting US customs as a US citizen, there they can't (legally) punish US citizens for not unlocking their phones, aside from a few hours dentention/"enhanced interrogation".

Not sure what the laws are in Sweden and Denmark, where I usually fly into the EU from, but usually they don't search phones at borders. Swedish police are more inclined to just look you up in the residence database and get a warrant for a home visit, I believe.

Other countries would risk a diplomatic incident from Sweden if they used force to make me unlock my phone 🤷

[–] ShinkanTrain@lemmy.ml 25 points 18 hours ago

You say security, I say memory leak fixer

[–] technopagan@discuss.tchncs.de 4 points 13 hours ago (1 children)

Use "free" Google services so that any pseudo-governmental entity can get full access to your mails, backups, photos, contacts, location ... but worry about stuff in device memory. Yes. A sane approach.

[–] possiblylinux127@lemmy.zip 1 points 3 hours ago

Google is one of the most security focused companies believe it or not.

[–] Goretantath@lemm.ee 8 points 17 hours ago

Already a thing on my phone, update happens and i wake up to my apps not being open.

[+] PunkRockSportsFan@fanaticus.social -10 points 19 hours ago (5 children)

This sounds less like security

And more like a backdoor

[–] 9tr6gyp3@lemmy.world 44 points 18 hours ago (1 children)

Leaving your keys in memory is the weakness that could potentially let authorities into your phone. This could harm people. If your phone has rebooted, and you haven't logged in yet, there are no keys in memory. That means your data is encrypted at rest.

For the sake of comparison, this was also implemented in iOS 18.

[–] TangledHyphae@lemmy.world 19 points 18 hours ago (1 children)

Thanks for the voice of sanity. There are so many people freaked out by basic security measures that it boggles the mind.

[–] southsamurai@sh.itjust.works 25 points 18 hours ago (1 children)

Google has broken trust so often, so severely, that it's the default to not trust anything they do, ever.

If they can, they absolutely will leverage basic security measures for their own benefit. And, it isn't like there's no press by governments to backdoor all the things.

So it shouldn't boggle the mind at all. This is what happens when oligarchs and their servants run amok, nobody can trust anything.

[–] TangledHyphae@lemmy.world 12 points 18 hours ago (1 children)

GrapheneOS offers such an auto-reboot feature (18 hours by default, but the users can set it between 10 minutes and 72 hours), while the iPhone picked up something similar with iOS 18.1 (Inactivity Reboot) last year.

I was referring primarily to things that are known to be good security practices and widely known and used already. Keeping data more secure at rest goes with the "don't trust anything or anyone" goal, and if not doing it on Android due to said trust or lack thereof, then GrapheneOS offers it too at least.

[–] southsamurai@sh.itjust.works 6 points 17 hours ago

Oh, I get it. I'm looking at switching to graphene despite it needing a Google phone.

I'm just saying that people see Google and changes in an article, it's not weird for them to immediately assume something hinky is going on

[–] JollyGreen_sasquatch@sh.itjust.works 24 points 18 hours ago (1 children)

The before first unlocked state is considered more secure, file/disk encryption keys are in a hardware security module and services aren't running so there is less surface for an attack . When a phone is taken for evidence, it gets plugged into power and goes in a faraday bag. This keeps the phone in an after first unlock state where the encryption keys are in memory and more services that can be attacked are running to gain access.

[–] db2@lemmy.world 7 points 18 hours ago (1 children)

So hourly reboot is what you're saying

[–] jqubed@lemmy.world 14 points 18 hours ago

Depending on your threat model

[–] MightyCuriosity@sh.itjust.works 15 points 18 hours ago

GrapheneOS has had this feature. Unlocking after a reboot is only possible with PIN. Also the RAM is wiped. This increases security and lowers the risk of attackers gaining access. Be it physically or not.

[–] besselj@lemmy.ca 5 points 18 hours ago (1 children)

It's more like security theater if the phone doesn't have the latest OS and doesn't have the necessary hardware to block cellbrite in the BFU state

[–] jlh@lemmy.jlh.name 1 points 13 hours ago

What hardware do android phones not have making them vulnerable to cellbrite?

[–] remotelove@lemmy.ca 3 points 17 hours ago

I dump memory more often than you would think. It's usually not obfuscated or encrypted in any meaningful way even though it is fairly trivial to do so.

It's good practice to scour through any bloatware installed on windows laptops. Since bloatware is generally written by the lowest bidder, you can find all kinds of keys and phone-home urls (sometimes with all the parameters) and other weird things. Just fire up a decent hex editor and search for strings in the dump file. You don't need to know jack about reverse engineering either.