3 ms·

(I'm joking, but curious) How difficult would it be to implement and oximiter-like sensor along with touch id, to at least make sure blood is pumping through th

• wyager 4y ago
  It's unclear to me if Touch ID already ignores dead tissue. I can find some reputable sources claiming it does, but there seems to be a lack of consensus. > Mashable repeatedly asked Apple, Google, and Samsung for comment on the matter, but received not a single response to our numerous inquiries. We also reached out to a host of biometric security experts, hackers, digital law experts, and forensic pathologists in an attempt to get to the bottom of what has passed from the realm of dark thought experiment to serious inquiry, but the responses (or lack thereof) only further muddied the waters. The articles I find claiming touch ID rejects dead fingers seem to be written by people who have no idea what they're talking about, so I would not take claims about its liveness guarantees (hah) seriously. People mostly seem to be confusing credible claims about rejecting e.g. pictures of fingerprints with incredible claims about detecting if a piece of tissue is alive or not.
• 2Gkashmiri 4y ago
  heh, i watched a video about putting a carrot in an oximeter and it showed a reading. i swept that as covid costcutting making shoddy equipment but i had a 2016 bought oximeter and i saw 50-60% saturation on a carrot and mind=blown. the problem is, you cant really say "ignore less than 70% saturation as that is most probably a carrot" because covid patients got as low as 50% so i don't know what to make of it
• zwog 4y ago
  I don't know about smartphones and Macbooks, but biometric access control systems in buildings and such usually measure at least the body temperature.