this is very misleading:
- clarification: desktop only works when you have a mobile device setup and pair it like these (unless you virtualize android)
- if someone gets access to the phone number they can impersonate you and then obtain info from your contacts. they'll be notified of a change in your "safety number", but unless they're being vigilant they might still comply with the bad actor
- push notifications are somewhat insecure, but group chats have nothing to do with it. the attack you describe would work in any chat, and the resolution is the same: don't invite or accept chats you don't recognize, and always verify out of band.
- if you disable notifications or use f-droid it will not go through apple or google push notification servers
- bonus point: your best bet for device security is GrapheneOS (npub1kwa…e0nj) on a modern pixel. everything else is insecure by comparison
dead oppossum (npub1z45…w90t)