> As other people pointed out, this solves a non-problem: if i don't want to be liable for a fraudulent purchase, i just use a credit card, not a debit card. T

> As other people pointed out, this solves a non-problem: if i don't want to be liable for a fraudulent purchase, i just use a credit card, not a debit card. The video never claims to solve the problem of being liable for fraudulent purchases. The video claims it solves the problem of having only a single credit card number, and having to change the credit card number on file with all your web services (PayPal, Apple/Google, various subscriptions, etc.) when you get a new card, because it expires, or when one is cancelled because someone snatched your card info.