Would this attack be neutralized by a mandatory waiting period of a few weeks for number porting?
I recently ported my number to another operator (in a European country), I had to wait for a month and received at least two warning SMS.
It would but the average user would be pissed if they went into a retail store and were told that they had to wait weeks to use their new phone. They might decide to abort the purchase.
Meh, I'd just report your phone as stolen and get the IMEI blocked. You wont get the warning SMS and might not even get a new phone in time to figure out what's going on.
