"[...] stupidly, we have also settled on phone numbers as a means of authentication"
I've never understood why WhatsApp decided to rely on phone numbers for auth (or, not even that long ago, a phone to do anything at all).
https://arstechnica.com/gadgets/2025/12/i-switched-to-esim-in-2025-and-i-am-full-of-regret/
