The head of the Signal app has criticized plans in the EU to allow messengers to have backdoors to enable automatic searches for criminal content. Signal is considered one of the most secure messengers.
Not officially I don’t think. And even if you did, you’d need a customized app to point to said server, and then you wouldn’t be interoperable with the regular signal network
You can run your own server for signal by the look of it
Not officially I don’t think. And even if you did, you’d need a customized app to point to said server, and then you wouldn’t be interoperable with the regular signal network