As far as I know, Signal is hosted on a mix of Amazon, Google, Microsoft and Cloudflare. https://www.kuketz-blog.de/signal-jegliche-kommunikation-erfolgt-ueber-

As far as I know, Signal is hosted on a mix of Amazon, Google, Microsoft and Cloudflare. https://www.kuketz-blog.de/signal-jegliche-kommunikation-erfolgt-ueber-tech-giganten-wie-amazon-microsoft-google-und-cloudflare/ https://www.kuketz-blog.de/signal-jegliche-kommunikation-erf... Threema is hosted on bare-metal servers in Switzerland. https://threema.ch/en/faq/server_location https://threema.ch/en/faq/server_location