I'm not sure if they need a warchest; my point was that Whisper don't have a presence in Brazil and so they probably couldn't be compelled to do anything by the

I'm not sure if they need a warchest; my point was that Whisper don't have a presence in Brazil and so they probably couldn't be compelled to do anything by the government there, whereas FB has employees and execs there, and directly do business there, so there are all sorts of levers that the Brazilian government can (and have tried to) pull to compel them. Frankly I suspect it would be good press for Moxie if he had an arrest warrant outstanding for not turning over customer messages to a government. Also note that FB Messenger doesn't have e2e encryption, and I'm fairly sure that FB would hand over any data that they do have to any government that asked. They certainly hand such information over to the NSA. The reason I brought WhatsApp in as an example was because even Facebook, a company well-known for sharing its users' data with government security agencies, was not able to share Signal messages. That is fairly strong evidence that their protocol implementation does not have a secret backdoor; if there was such a backdoor, there would be no story of an FB exec in jail, since FB would have quietly handed over the messages that Brazil asked for.