Originally Posted by
pdxer
They aren't doing that for security purposes because SMS is much easier to hack than email. They're doing it because it reduces customer complaints and support costs. It's cheaper for them for a few accounts to be hacked than deal with true security.
How does eliminating an option reduce complaints?
Also, I feel like email is easier to hack than SMS. At least with the latter you theoretically need a valid SIM linked to the phone number on the account (even if it's simple for attackers to social engineer their way to getting your number onto their phone).