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Using Signal groups for activism
(micahflee.com)
Welcome! This is a community for all those who are interested in protecting their privacy.
PS: Don't be a smartass and try to game the system, we'll know if you're breaking the rules when we see it!
Some of these are only vaguely related, but great communities.
Some users are mentioning SimpleX, which has some very good features, but for activism I'd really suggest Briar. Just scan each other's QR codes to add all the needed contacts with no real names and create a mesh network through WiFi or Bluetooth connections between devices (no internet needed). If everyone is still bent on using Signal, whoever owns an Android phone should at least download the .apk from Molly.im. This version of the app is better suited for this.