> In these cases, you might be better off creating a Google Voice phone number (which cannot be SIM ported) and using that has your 2-Factor Auth recovery number.
I hoped this too but someone commented to me recently that GV is not immune to porting attacks:
I hoped this too but someone commented to me recently that GV is not immune to porting attacks:
https://news.ycombinator.com/item?id=19886705