@ljrk @david_chisnall @sbb @chiraag @tortie @waeiski @Mer__edith
Signal know which device sends a message and which device receives a message. Moreover it can track traffic of all users. Feds do not need to access multiple servers (like in federated systems), they only need to access Signals servers to get this data of millions of users (perhaps they already did). Why is this secure?
But I agree that Delta Chat may not be the right choice for persons of very high risk (i am not sure). It is more a great every day messenger which gives people back the power over their communication.