Egregoros

@mike805
Meta provides an illusion of privacy. They tout products as E2EE but downplay how much metadata they collect on all messaging (Who contacts whom, how often, length of conversations, device, location, other apps on device..). Of course you have to trust that their software does what they say it does and that they won't change it whenever they want to.

@mike805
FYI Signal is centralized and closed source.

@mike805
The Signal server code is closed source.

Android forks like Graphene are generally more secure and private than a Linux machine depending on what you do.

@mike805
The closed source server code is capable of collecting metadata. The secret sender mechanism is not impenetrable. You are always trusting the operators to be running the code they say they are. Communists are on the foundation board. Many much better solutions exist.

@mike805
Matrix is okay, but it exposes a lot of metadata. The guys who founded and developed matrix worked for the same Israeli telco software company that I did. They funded its development. I don't trust them, but I can't tell you much else.

Simplex.chat, delta.chat, session, and other decentralized messengers are as easy as Signal, but getting people to install an app is the biggest friction. I share all my comms channels on my web page and let people pick.