In Japan? O_O
What's with banks and fintech. LOL.
The other 2FA methods are cheaper and more secure. Why are they sticking to SMS.
Back in 2016 or 2017, here in the Philippines, a few people went public that despite having SMS 2FA, their mobile bank accounts were still compromised. When the banks checked, those were “legitimate” transactions because the 2FA were successful.
Then the narrative was changed to blaming the customer. They also explained that SMS-based 2FA is secure, and what happened to the victims was what's called “social engineering”.
And just like that, it ended, and forgotten. *shrugs*