I hate how Signal went down because of this… Wish it wasn’t so centralised.
My friend messaged me on Signal asking if Instructure (runs on AWS) was down. I got the message
Why is this scary? That’s what e2ee is for, so that no one besides your recipient can view the contents of a message. It does not matter which server is used. If anything for a service like Signal, you want a server with high availability like AWS, Azure, Google Cloud or Cloudflare.