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34 points

End to end is end to end. Its either “the devices sign the messages with keys that never leave the the device so no 3rd party can ever compromise them” or it’s not.

Signal is a more trustworthy org, but google isn’t going to fuck around with this service to make money. They make their money off you by keeping you in the google ecosystem and data harvesting elsewhere.

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6 points

end to end is meaningless when the app scans your content and does whatever with it

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5 points

For example, WhatsApp and their almost-mandatory “backup” feature.

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1 point

They do encrypt it and they likely dont send the messages unencrypted.

Likely what’s happening is they’re extracting keywords to determine what you’re talking about (namely what products you might buy) on the device itself, and then uploading those categories (again, encrypted) up to their servers for storing and selling.

This doesn’t invalidate their claim of e2ee and still lets them profit off of your data. If you want to avoid this, only install apps with open source clients.

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0 points
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E2EE means a 3rd party cant extract anything in the messages at all, by definition.

If they are doing the above, it’s not E2EE, and they are liable for massive legal damages.

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0 points

Thats not what it means. It means that a third party cannot decrypt it on their servers.

Of course if the “third party” is actually decrypting it on your device, then they can read the messages. I dont know why this is not clear to you.

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4 points

Note that it doesn’t mean metadata is encrypted. They may not know what you sent, but they may very well know you message your mum twice a day and who your close friends are that you message often, that kinda stuff. There’s a good bit you can do with metadata about messages combined with the data they gather through other services.

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4 points
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End to end matters, who has the key; you or the provider. And Google could still read your messages before they are encrypted.

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2 points

Yup, they can read anything you can, and send whatever part they want through Google Play services. I don’t trust them, so I don’t use Messenger or Play services on my GrapheneOS device.

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2 points

You have the key, not the provider. They are explicit about this in the implementation.

They can only read the messages before encryption if they are backdooring all android phones in an act of global sabotage. Pretty high consequences for soke low stakes data.

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1 point

I’m pretty sure the key is stored on the device, which is backed up to Google. I cannot say for sure if they do or don’t backup your keyring, but I feel better not using it.

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1 point

I mean, Google does, with Play Services.

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End to end could still - especially with a company like Google - include data collection on the device. They could even “end to end” encrypt sending it to Google in the side channel. If you want to be generous, they would perform the aggregation in-device and don’t track the content verbatim, but the point stands: e2e is no guarantee of privacy. You have to also trust that the app itself isn’t recording metrics, and I absolutely do not trust Google to not do this.

They make so of their big money from profiling and ads. No way they’re not going to collect analytics. Heck, if you use the stock keyboard, that’s collecting analytics about the texts you’re typing into Signal, much less Google’s RCS.

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2 points

Of course our app is end-to-end encrypted! The ends being your device and our server, that is.

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3 points
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That’s literally what zoom said early in the pandemic.

Then all the business in the world gave them truck loads of money, the industry called them out on it, and they hired teams of cryptographers to build an actual e2ee system

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5 points

It’s end to end to end encrypted!

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18 points
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Signal doesn’t harvest, use, sell meta data, Google may do that.
E2E encryption doesn’t protect from that.
Signal is orders of magnitude more trustworthy than Google in that regard.

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3 points

Agreed. That still doesnt mean google is not doing E2EE for its RCS service.

Im not arguing Google is trustworthy or better than Signal. I’m arguing that E2EE has a specific meaning that most people in this thread do not appear to understand.

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1 point

Sure!
I was merely trying to raise awareness for the need to bring privacy protection to a level beyond E2EE, although E2EE is a very important and useful step.

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10 points

There’s also Session, a fork of Signal which claims that their decentralised protocol makes it impossible/very difficult for them to harvest metadata, even if they wanted to.Tho I personally can’t vouch for how accurate their claims are.

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17 points

It could be end to end encrypted and safe on the network, but if Google is in charge of the device, what’s to say they’re not reading the message after it’s unencrypted? To be fair this would compromise signal or any other app on Android as well

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-4 points
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That’s a different threat model that verges on “most astonishing corporate espinoage in human history and greatest threat to corporate personhood” possible for Google. It would require thousands if not tens of thousands of Google employees coordinating in utter secrecy to commit an unheard of crime that would be punishable by death in many circumstances.

If they have backdoored all android phones and are actively exploting them in nefarious ways not explained in their various TOS, then they are exposing themselves to ungodly amounts of legal and regulatory risks.

I expect no board of directors wants a trillion dollars of company worth to evaporate overnight, and would likely not be okay backdooring literally billions of phones from just a fiduciary standpoint.

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0 points

How do spyware services used by nation-state customers, like Pegasus, work?

They use backdoors in commonly used platforms on an industrial scale.

Maybe some of them are vulnerabilities due to honest mistakes, the problem is - the majority of vulnerabilities due to honest mistakes also carry denial of service risks in widespread usage. Which means they get found quickly enough.

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13 points

It would require thousands if not tens of thousands of Google semployees coordinating in utter secrecy

This is usually used for things like the Moon Landing, where so many folks worked for NASA to make it entirely impossible that the landing was faked.

But it doesn’t really apply here. We know for example that NSA backdoors exist in Windows. Were those a concerted effort by MS employees? Does everyone working on the project have access to every part of the code?

It just isn’t how development works at this scale.

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3 points

You may be right for that particular instance, but I’d still argue caution is safer.

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51 points
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google isn’t going to fuck around with this service to make money

Your honor, I would like to submit Exhibit A, Google Chrome “Enhanced Privacy”.

https://www.eff.org/deeplinks/2023/09/how-turn-googles-privacy-sandbox-ad-tracking-and-why-you-should

Google will absolutely fuck with anything that makes them money.

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27 points

This. Distrust in corporations is healthy regardless of what they claim.

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4 points

Dont trust. Verify. Definitely dont touch it if its closed source

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-1 points
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Thats a different tech. End to end is cut and dry how it works. If you do anything to data mine it, it’s not end to end anymore.

Only the users involved in end to end can access the data in that chat. Everyone else sees encrypted data, i.e noise. If there are any backdoors or any methods to pull data out, you can’t bill it as end to end.

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1 point

End to end doesn’t say anything about where keys are stored, it can be end to end encrypted and someone else have access to the keys.

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12 points

You are suggesting that “end-to-end” is some kind of legally codified phrase. It just isn’t. If Google were to steal data from a system claiming to be end-to-end encrypted, no one would be surprised.

I think your point is: if that were the case, the messages wouldn’t have been end-to-end encrypted, by definition. Which is fine. I’m saying we shouldn’t trust a giant corporation making money off of selling personal data that it actually is end-to-end encrypted.

By the same token, don’t trust Microsoft when they say Windows is secure.

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9 points

They can just claim archived or deleted messages don’t qualify for end to end encryption in their privacy policy or something equally vague. If they invent their own program they can invent the loophole on how the data is processed

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