Apple is believed to be working on ultrasonic fingerprint sensors that would be embedded into the glass of future iPhones, potentially allowing the company to give up on facial recognition, but a newly-discovered patent suggests that won’t be the case.

A patent called “Vein imaging using detection of pulsed radiation” describes what could be a future upgrade to Apple’s Face ID, making facial recognition substantially more accurate and harder to crack by scanning the veins on users’ faces.

Apple applied for the patent in November 2015, probably at about the same time when it started working on Face ID (Cupertino execs said they worked for approximately two years …

https://news.softpedia.com/news/future-iphones-might-be-able-to-scan-veins-in-users-faces-521144.shtml