Migrate any sensitive discussion to Signal. If possible, migrate all messaging to encrypted traffic. By using encrypted traffic you safeguard encrypted tactical exchange via obfuscation. A drop in an ocean is less identifiable than a drop in a pond.
Always turn on disappearing messages. Have a backup mechanism for when they take down Signal, as it is inevitable.
Download Signal Private Messenger.
https://apps.apple.com/us/app/signal-private-messenger/id874139669
https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms
https://signal.org/android/apk/
Create local groups.
Organize there.
Migrate any sensitive discussion to Signal. If possible, migrate all messaging to encrypted traffic. By using encrypted traffic you safeguard encrypted tactical exchange via obfuscation. A drop in an ocean is less identifiable than a drop in a pond.
Always turn on disappearing messages. Have a backup mechanism for when they take down Signal, as it is inevitable.
You’ve been invaded. Act accordingly.
I prefer Matrix, harder to shut down and decentralized.
Though signal is still great!
Signal is a good start.
I recommend simplex chat
It is a tiny bit more complicated to set up and it’s not syched on a centralized server or use any personally tracable identifier.