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it’s only gotten better. now you can run it in your browser and play local files

https://webamp.org/

MLS only deals with encryption and key management, which is great but that’s been a “solved” problem since TextSecure (now Signal) introduced the TextSecure Protocol (now the Signal Protocol) in 2013.

What I’m aware is missing with RCS / MLS compared to Signal (someone with more recent knowledge please correct me):

• Sealed sender so only the recipient knows who sent the message.
• Not storing metadata or logs.
• No built in crash reports.
• Private contact discovery.
• Published government requests providing evidence that they don’t have any data.
• Open source client.
• Looking at the Google Play store, Google’s Messenger shares precise location data with third parties, Signal doesn’t.
• Also on the Google Play store, Google’s Messenger app list a lot of data collected. Signal only lists phone number.

RCS still leaks metadata like a sieve. Encryption, considering the platforms that exist today (Signal and SimpleX), should not be the minimum requirement. Plain-text messaging should not even be possible in modern secure messaging platforms. The platform should be open source and be engineered to mitigate the collection of metadata - like Signal and SimpleX.

but I thought apple were the good guys /s