1. The last time people bought non-transparent crypto from Switzerland it turned out decades later the company was secretly owned by the CIA. https://www.thegua

1. The last time people bought non-transparent crypto from Switzerland it turned out decades later the company was secretly owned by the CIA. https://www.theguardian.com/us-news/2020/feb/11/crypto-ag-cia-bnd-germany-intelligence-report https://www.theguardian.com/us-news/2020/feb/11/crypto-ag-ci... 2. Threema is proprietary around open source library. It's trivial to add a backoor after any audit, and it's trivial to lie in your transparency report. Open source stuff is _obvious_ choice. There's no reason to open entire source for Threema (no ~one's making a profit copying other messengers) unless they're hiding something.