PommePourMoi wrote:
Sorry, I'm not asking my question very clearly. Even though it's called "SIM swapping", it's rare that someone actually obtains your physical SIM card. What "SIM swapping" really means is that scammers have contacted your mobile phone carrier and have tricked them into activating a SIM card that the fraudsters have. Your own SIM card then no longer works.
From what I've read, this can happen with both physical SIM cards and eSIMs. So back to my question. For eSIMs, are there any other Apple protections that I can turn on to mitigate this risk?
SIMs are just means to identify you, and your plan, to a carrier's network. Apple doesn't control what cellular services your carrier provides. The carrier does. So if some lowlife scammer is able to trick your carrier into "swapping" your SIM, I doubt if there's anything that Apple or your iPhone can do about it. Any particular SIM (identifier) is only good for whatever services the carrier's servers say it is. (Modulo the requirement in some countries to allow Emergency police/fire/ambulance calls even when there is no contract with the carrier.)
The protection against that sort of fraud needs to be embedded within the business practices of your carrier, themselves. If it happens to you, you need to raise a loud fuss with the carrier – and hopefully they will realize their error, and do something to fix it.