MasterCard Identity Check has started using selfie checks instead of passwords to identify its customers. It would certainly solve password-related issues, but how sensitive will the facial-recognition be? Will it be able to take on board subtle aging signs? If the customer suffers an accident or surgery that alters their face, is there a way to 'modify' the recognition? What if you have a very changeable face?

I say this as someone who has consistently failed at the facial recognition gate at customs.