2FA. I was a smartphone hold-out for longer than anyone I know, but banks mandating 2FA with no options for doing it in a standards-compliant way or any way that doesn't involve the app stores was what finally broke my resistance.
I'm just wondering since I'm currently using 3 different European banks without any biometric authentication to unlock my phone, password manager or provide a 2FA.
I'm asking so that I can adjust in time to any new regulations I'm not aware of.
I kind of jumped at the "biometric" part of your original comment.
Now I understand what you mean better and I'm not worried about my setup (although I question how it complies, but that is another matter).