alt Hacker NewsSignal's default setup is more usability focused while supporting E2E, and less about tinfoil hat threat models about being present on a continent you're a citizen of.
The items you mentioned can essentially be configured, for those that want the insane level of privacy / security. Messages can be auto-deleted 30 seconds after being seen, a proxy can be configured to route all your traffic through it, and tons of other things can be done to customize it more to the user's liking.
I'd imagine they're caching it because of egress costs. File attachments, voice mail, video, etc. can all add up.
> Signal's default setup is more usability focused while supporting E2E
If images/attachments were e2ee, this problem probably wouldn't exist, right? or are the images on cloudflare encrypted?
Edit: I should clarify. I didn't mean the encryption itself fixes the problem, but rather that: If this were handled like the text messages we send (not via cloudflare CDNs) then this wouldn't exist. I get that attachments are quite some bytes bigger than text but shouldn't the security guarantees be the same?