Which apps began to interoperate with FB Messenger?
Which apps began to interoperate with FB Messenger?
Meta has already announced interopability opportunity since March 6. Has anything been made after that? All I know is that Signal apparently won't operate with them.
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Has there been official communication from Signal that they won't?
yes.
https://www.heise.de/news/Whatsapp-muss-sich-oeffnen-Threema-und-Signal-winken-ab-9636224.html
Signal does not want to lower its standards for WhatsApp either. "Our privacy bar is extremely high, and not only will we not lower it, we want to keep raising it," says Signal President Meredith Whittaker. "Currently, working with Facebook Messenger, iMessage, WhatsApp or even a Matrix service would mean a degradation of our privacy standards."
[Translated with DeepL]
I was curious about this too and had a little look myself, all I can find is that other companies interested in interopability are implementing MLS encryption instead of implementing the Signal protocol in their apps.
Can't find any info on Signal's blog about interest in adopting MLS encryption, or considering interopability with Meta apps that already use (or may use) the Signal protocol... unless I've missed something or been looking in the wrong place
Messenger is implementing signal protocol for interoperability, you can read this in their blog post