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Private Cloud Compute: A new frontier for AI privacy in the cloud

security.apple.com

371–380 of 393 posts

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#371

Fyi this is the same company that has been accused of showing people's photos and videos in stranger people's devices by accident. https://discussions.apple.com/thread/252459254?sortBy=best

You mean the _bug_ Apple fixed? These things are not related.

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#372

The thing with cloud and with anything related to it, anything that connects to the internet somehow... is that, unless it's open source and the servers decentralized, you are always trusting SOMEONE. Sure, Apple might make their best to ensure nobody – but them – have access to your data... but Apple controls all the end points. It controls the updates your iPhone receives, it controls the servers where this happens…

Ah yes, the unhackable bastion of open-source.

…wait, haven’t there been MULTIPLE cases of open-source projects getting hacked in the last couple of years?

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#373

Earlier quoted context omitted.

Destroyed? Where? In all places where they were stored? Or just in some of them? How can you tell? You still need to trust them they didn't copy them somewhere.

It's impossible to use any technology if you don't trust anyone. Any piece of technology MAY have a backdoor or secondary function you don't know of and can't find out without breaking said device.

That was the point of my response. Somewhere in the chain one must trust something without any proof.

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#374
post #247

Earlier quoted context omitted.

https://en.m.wikipedia.org/wiki/Confidential_computing This is what they are doing. Search implementations of this to understand more technical details.

It's not, AFAICT from the press release. Confidential Compute involves technologies such as SGX and SEV, and for which I think Asylo is an abstraction for (not sure), where the operator (eg Azure) cannot _hardware intercept_ data. The description of what Apple is doing "just" uses their existing code signing and secure boot mechanisms to ensure that everything from the boot firmware (the computers that start before t…

Apple's secure enclave docs also mention memory encryption. The PCC blogpost mentions that the server hardware is built on secure enclaves. And since they are claiming that even Apple can't access it, I am currently assuming that there will be memory encryption happening on the servers. At which point you have have the main ingredients of CC: memory encryption & remote attestation.

EDIT: and they mention SGX and Nitro. Other CC technologies :)

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#375

Earlier quoted context omitted.

It's not, AFAICT from the press release. Confidential Compute involves technologies such as SGX and SEV, and for which I think Asylo is an abstraction for (not sure), where the operator (eg Azure) cannot _hardware intercept_ data. The description of what Apple is doing "just" uses their existing code signing and secure boot mechanisms to ensure that everything from the boot firmware (the computers that start before t…

Apple's secure enclave docs also mention memory encryption. The PCC blogpost mentions that the server hardware is built on secure enclaves. And since they are claiming that even Apple can't access it, I am currently assuming that there will be memory encryption happening on the servers. At which point you have have the main ingredients of CC: memory encryption & remote attestation. EDIT: and they mention SGX and Nitr…

> Apple's secure enclave docs also mention memory encryption.

Yes, but that's only within the enclave. Every Mac hardware since T2 has had that, and we don't consider them strong enough to meet the CC bar.

As an example of the difference, CC is designed so that a compromised hypervisor cannot inspect your guest workload. Whereas in Apple's design, they attempt to prove that the hypervisor isn't compromised. Now imagine there's a bug ...

(Not that SGX hasn't had exploitable hardware flaws, but there is a difference here.)

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#376

Earlier quoted context omitted.

It's not about being clever, it's about being perceptive. Apple's cloud commitment has a history of being sketchy, whether it's their government alliance in China, the FIVE-EYES/PRISM membership in America, or their obsession with creating "private" experiences that rely on the benefit of the doubt. Apple doesn't care about you, the individual. Your value as a singular customer is worthless. They do care about the wh…

> And worst off, Apple markets security. That's it; you can't go verify their veracity outside the dinky little whitepapers they publish. You can't know for sure if they have privacy violation baked-in to their system because you can't actually verify anything. Oh, boy, but this is deeply false. Apple literally provides security researchers models of their devices to verify their security claims on their most importa…

Apple has tried suing researchers, before: https://www.theverge.com/2021/8/11/22620014/apple-corellium-...

On top of that, they fail to commit to iOS security on the level of AOSP and don't let researchers create hardened variants or custom patches. With actively-distributed exploits like Pegasus still being used, that's the sort of behavior that turns your userbase into a stationary target. Giving researchers iPhones is insultingly usel

Apple vehemently opposes the concept of anyone securing their iPhone except them. They have a well-documented habit of ignoring vulnerabilities and offering zero compensation for the discovery of zero-days. Apple's ambivalence towards the security research sector is like one of the only things they're known for, among hacker communities. It is "verifiably false" in the sense that Apple spends quite a lot of money marketing the opposite of what they actually do in reality (not that you should be surprised by that).

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#377

Earlier quoted context omitted.

If you are the target of a nation state level actor, you are already fucked. Most of us just don’t want our behavior sold to our insurance companies or whatever. Apple doesn’t do that because it would kill their brand for very little return.

This is the part that’s always so humorous to me about the super tinfoil hat security crowd. They think they’re in the plot of Mr Robot or something. When for the most part, no one actually cares about them at all. My dad fits into this category. So worried about being “tracked by the government.” He’s not a dissident. He’s not a journalist. Not a freedom fighter. Just deeply inconveniencing his kids with some of his…

So this whole thing is about you being angry that your dad doesn't use iMessage?

Sounds like your dad is the cool dude, and you're the tech-obsessed weirdo. Do you visit him often?

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#378

Earlier quoted context omitted.

This is the part that’s always so humorous to me about the super tinfoil hat security crowd. They think they’re in the plot of Mr Robot or something. When for the most part, no one actually cares about them at all. My dad fits into this category. So worried about being “tracked by the government.” He’s not a dissident. He’s not a journalist. Not a freedom fighter. Just deeply inconveniencing his kids with some of his…

So this whole thing is about you being angry that your dad doesn't use iMessage? Sounds like your dad is the cool dude, and you're the tech-obsessed weirdo. Do you visit him often?

Nah he uses iMessage. He’s not that obstinate.

He’s otherwise a good dude. Just makes some tech choices here and there as if he’s a former CIA agent on the run that sort of just make you chuckle and shake your head.

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#379

Earlier quoted context omitted.

If you are the target of a nation state level actor, you are already fucked. Most of us just don’t want our behavior sold to our insurance companies or whatever. Apple doesn’t do that because it would kill their brand for very little return.

This is the part that’s always so humorous to me about the super tinfoil hat security crowd. They think they’re in the plot of Mr Robot or something. When for the most part, no one actually cares about them at all. My dad fits into this category. So worried about being “tracked by the government.” He’s not a dissident. He’s not a journalist. Not a freedom fighter. Just deeply inconveniencing his kids with some of his…

I really also don’t bother about security, but I hate that any argument against people caring about privacy is along the lines of „I have nothing to hide“. Especially on the note of Apple, I remember when a dad was flagged as a pedophile because Apple found photos of his kid in his iCloud and their algorithm decided to get him raided. It’s about control, when you hand your data over to 3rd parties of any kind you are giving up control and one day that will bite you in the ass in some way. I am will to take that risk, you too, but I still think not wanting that is totally valid. A type of angst which I find much more stupid is people being scared of AI taking over the world HAL x Terminator style…

Re: Private Cloud Compute: A new frontier for AI privacy in the cloud

#380

Earlier quoted context omitted.

One hundred percent this. All these conversations always end up boiling down to someone thinking they’re being clever for pointing out you have to trust a company at the end of the day when it comes to security and privacy. Yes. Valid. So if you have to trust someone , doesn’t it make sense for it to be someone who has built protecting privacy into their core value proposition, versus a company that has baked violati…

It's not about being clever, it's about being perceptive. Apple's cloud commitment has a history of being sketchy, whether it's their government alliance in China, the FIVE-EYES/PRISM membership in America, or their obsession with creating "private" experiences that rely on the benefit of the doubt. Apple doesn't care about you, the individual. Your value as a singular customer is worthless. They do care about the wh…

You lose all credibility when you start yakking about FIVE EYES, etc. If you're the target of intelligence services, the advice you need is eloquently delivered in the movie "Goodfellas". That is: "Don't talk on the fucking phone."

American companies are subject to US law, full stop. Global technology companies have to balance interests to operate globally. China requires a local partner to operate services in the PRC, thus Apple and Microsoft (and others) operate with a business partner in that market.

From a business perspective, there's little or no incentive for Apple to take measures to collect information on you systematically - they do not monetize it and won't devote resources to its collection. However, not being responsive to government requests, demands, or order for information will result in punitive action. So they comply.

No company cares about you. They don't love or hate you. There's no moral purity - the competitive platform is owned by a company that owns the advertising market and has a long history of extracting every sinew of data to create profiles that allow for maximally efficient ad delivery. Engaging in whataboutism isn't productive.

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