Here’s what he said in a post on his telegram channel:
🤫 A story shared by Jack Dorsey, the founder of Twitter, uncovered that the current leaders of Signal, an allegedly “secure” messaging app, are activists used by the US state department for regime change abroad 🥷
🥸 The US government spent $3M to build Signal’s encryption, and today the exact same encryption is implemented in WhatsApp, Facebook Messenger, Google Messages and even Skype. It looks almost as if big tech in the US is not allowed to build its own encryption protocols that would be independent of government interference 🐕🦺
🕵️♂️ An alarming number of important people I’ve spoken to remarked that their “private” Signal messages had been exploited against them in US courts or media. But whenever somebody raises doubt about their encryption, Signal’s typical response is “we are open source so anyone can verify that everything is all right”. That, however, is a trick 🤡
🕵️♂️ Unlike Telegram, Signal doesn’t allow researchers to make sure that their GitHub code is the same code that is used in the Signal app run on users’ iPhones. Signal refused to add reproducible builds for iOS, closing a GitHub request from the community. And WhatsApp doesn’t even publish the code of its apps, so all their talk about “privacy” is an even more obvious circus trick 💤
🛡 Telegram is the only massively popular messaging service that allows everyone to make sure that all of its apps indeed use the same open source code that is published on Github. For the past ten years, Telegram Secret Chats have remained the only popular method of communication that is verifiably private 💪
Original post: https://t.me/durov/274
I don’t think i care what Jack Dorsey says that isn’t backed up independently. Even if he’s right i just don’t trust him.
You shouldn’t need to trust open source, it should be independently verifiable. Unfortunately that’s not possible with either signal or telegram, as there’s no way to tell what server code they’re running.
If encryption happens client side then it doesn’t matter.
Its where the server is open but the client is closed that we need to worry, as is the case with Beeper
Closed sources server (even open source with no verification of the code running on the server) means it’s possible the server records who you talk to, when, where and the size of the messages. This can be useful to sell to advertisers.
If the client is open, then you can check to make sure that all metadata is encrypted.
You don’t need meta data to know these things. Any server handling the traffic for the app will know these things.
Not true for all messengers
Only if the messenger is P2P, I don’t know of any popular messenger like that.
SimpleX for one
Cloud source server or open source server, you can’t know what server their running.
Pavel’s whole argument here is basically the same thing for the client; “you can’t verify the build in the app store matches what’s in the source code, so you have no way of knowing it’s actually what you’re auditing.”