[Zuiii]

Completely agreed about the nonsensical first claim. We have many third-party clients for other messaging platforms where privacy and security are a primary feature. It's completely tenable, especially for a player like Apple.

Or put another way: If the privacy and security of imessage is compromised by someone building another client, I'd argue that you never had either to begin with.

[dwaite]

> Completely agreed about the nonsensical first claim. We have many third-party clients for other messaging platforms where privacy and security are a primary feature.

I can't think of an any with independent implementations.

For instance, have a few third party Signal clients, which work by using the official libSignal . These are not third party clients, but third party GUIs. Use of libSignal on the official Signal network is also not supported or recommended.

Likewise, all the third-party Telegram clients I know of are forks using Telegram source.

This makes sense, because neither of these are stable systems. A third party has to stay up-to-date with features and changes made to the official servers and clients.

Do you know of a security and privacy focused messaging platform which is both:

1. documented

2. has multiple independent implementations of the networking and security protocols?

[twicetwice]

Does Matrix not qualify?

[dwaite]

I suppose it is determined by where you set the bar, even more so with privacy which still varies person-to-person and can sometimes take a qualitative feel.

Security wise, there is interesting work adopting MLS (and I believe key transparency) under Matrix, see https://arewemlsyet.com for example.

[alephnan]

> If the privacy and security of imessage is compromised by someone building another client, I'd argue that you never had either to begin with

That's like saying the internet protocol is neither private and secure because people willingly use random public Wi-Fi