Re: 2FA, passwords, fingerprints
Sending a text message containing a second password to the phone is a good idea, though.
It has additional advantages. My bank uses it to verify online purchases, checking that my credit card is being used by me. Some months ago I got 3 or 4 such passwords within 5 minutes, for purchase attempts I hadn't made. A check online showed that other purchases were being made on my clearly skimmed Visa card. A quick call to the card hotline to cancel the card saved me a lot of grief.