One thing I hope we can all learn from the revelations of these "private" texts:
SMS should never be considered private or secure communication. Whether by eavesdropping / MITM attack or by court order, everything you send via SMS can be revealed to the entire world, one way or another.
@voltronic not really for "group" chats although it can be, but I use Signal Messenger as a replacement for Whatsapp.
@voltronic Yeah I don't use it as an SMS service at all. Only Signal to Signal app messaging. And yes the phone number requirement is a PITA.