To comply with DMA, WhatsApp and Messenger will become interoperable via Signal protocol

Mysteriarch ☀️@slrpnk.net to Technology@beehaw.org – 263 points –
To comply with DMA, WhatsApp and Messenger will become interoperable via Signal protocol | TechCrunch
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No, Signal announced they won’t implement interoperable messaging.

kind of dumb they could get huge market share

Yeah, this worked so well for XMPP when everybody federated with Gmail chat.

Well, it worked out for Google when it federated with Jabber, who first open sourced XMPP.

It's not. There is no privacy if you send your message to Whatsapp servers.

There's even less privacy if I have to have the WhatsApp app installed on my phone to send that message.

You have the big plus of not having the WhatsApp app installed and snooping around with all those permissions it has.

Would it not be E2EE? Isn't that one of the reasons for using the Signal protocol?

Yes, the "delivering" part would be E2EE. Do we really know the afterwards if they can read their users' messages? They probably can.

Whatsapp CANNOT read messages when e2ee is enabled, this client-side snooping was discussed when the protocol was first implemented. Whatsapp collects a ton of metadata and social graph info, but not message content.

Well you type messages in in plain text and they decrypt it to show you the messages at the other end. So they can do the nefarious processing on the client side and send back results to the mother ship. E2EE is only good when you trust the two ends, but with WhatsApp and Messenger you shouldn't trust the ends.

At the end of the day, you’ve got to trust someone. I’m 200% convinced meta mines the social graph, of course they do, and provide access to law enforcement with a pro forma request. But I’m also 199% sure they don’t actually read your messages once unencrypted, reencrypts them and sends them as hidden payloads or does something else with it. The damage, should it be discovered, would be untold.

And while I don’t trust Meta on a lot of things, I know enough people there to realise that if they did that it would leak.

It wouldn't matter to them really. Just look at how many people have gmail accounts.

They don't even have to send the whole messages back to base. They could be categorizing your messages in to themes and sending that back to base as small category flags. Use that to build a profile on you and use those for advertising to you.

You mention something on the theme of 'broken boiler' in a message, that gets analyzed on the client in to a category of 'interest in heating / boiler repair', plus some adjacent categories based on your demographic. The categorization gets sent back and the next website you visit has an ad for British Gas boiler repair.

Yes but it’s not like people wouldn’t observe the traffic, even if encrypted.

Sure, but any messaging app (including Signal) could have these backdoors in place. Heck, there's even vectors for unrelated apps on your phone to read this data once unencrypted.

That's actually true. We don't know the real-time server code of Signal. Though other apps cannot read what's written inside Signal, that's the good part. I prefer private server + Matrix but Signal is the easiest for regular people.

if i remember correctly, it would be E2EE (WhatsApp and Messenger are too) but Meta stores the encrypted message on their server

Signal does not care about "market share", they're a non-profit.

Them being nonprofit has nothing to do with the pursuit of marketshare. Plenty of nonprofits want to maximize marketshare. Them being nonprofit means they are mission-driven.

And what is that mission?

Per the Signal Foundation's website:

Protect free expression and enable secure global communication through open source privacy technology.

Them being nonprofit has nothing to do with the pursuit of marketshare.

Um, of course it does? LOL

Them being nonprofit means they are mission-driven.

And what is that mission?

Let's talk about what the opposite of their mission is: Mainly operating as a source of data collection and revenue for a corporate surveillance and advertising agency.

Do they want more users? Sure. Are they going to compromise on their core principles out of convenience for their users? Abso-fuckin-lutely not.

There's also the opposite to consider: that users would decide to use WhatsApp instead of Signal because they can, which then puts you in the uncomfortable position I find myself in often where I have to tell people I'm not accepting their messages from insecure platforms.

Source?

Ugh, an ad-block force wall. No visit.

What adblocker are you using? It doesn't appear for me.

The built-in ad blocker of the Vivaldi browser

I'm using Firefox + uBlock Origin and don't have a paywall.

You sure it's not disabled for AndroidPolice.com? I'm still seeing it.