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hodlbod | 9 months ago (raw) | root | parent | reply | flag +1 
 I don't know firsthand, but I believe they encrypt each message for the recipient, hence the scaling issues. They've been working on adopting MLS for 3 years, which will help a lot when it gets done.
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calle 👁️⚡👁️ | 9 months ago (raw) | root | parent | reply | flag 
 encrypted group messages are an unsolved problem as soon as the group becomes too large afaik
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hodlbod | 9 months ago (raw) | root | parent | reply | flag +1 
 That's what MLS is for, it reduces the amount of messages needed from O(n) to O(log(n)). Which is nice, but still doesn't scale as well as O(1) which is what you get with shared keys (at the expense of much worse security).
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JohnyDoor | 9 months ago (raw) | root | parent | reply | flag +2 
 the most important thing is that Matrix does not encrypt metadata
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SovranSystems | 9 months ago (raw) | root | parent | reply | flag 
 Matrix can be run Sovereignly. This helps as you are in full control of who you add into the rooms. Also, you can customize the server where no emails are used. It goes without saying don't dox yourself with a username. Also, if you federated with only other sovereign runners of their Matrix instance your attack vector is highly minimizesd.
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JohnyDoor | 9 months ago (raw) | root | parent | reply | flag +1 
 It's ok for government, enterprise, etc., but not for casual users. 

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