[dragonwriter]

> Digital authentication for purchasing is moving towards non-transferable biometrics ( i cant divulge my thumbprint like i can my pin )

Yes you can. In fact, it's a lot easier for you to do so involuntarily.

EDIT: And, it should be noted, once it has been "divulged" or otherwise compromised, it's a lot more painful to change your thumbprint than a PIN or other non-biometric password.

[seanp2k2]

Yeah, plus you stamp it in oil on everything you touch. For the billionth time, fingerprints are usernames, not passwords. If you model it as such, you get a much more realistic idea of where it is and isn't appropriate to use.