Proper modern approach adds thermal, or at least 1 other biometric sensor. Just as Windows hello relies on more than a pic, plus IR, + thermal. I suspect Apple

Proper modern approach adds thermal, or at least 1 other biometric sensor. Just as Windows hello relies on more than a pic, plus IR, + thermal. I suspect Apple X does this minimum. More features can, but not always, improve the model. As pointed out by Tim Cook it goes from 1 in 50000 odds of duplicate result to 1 in 1,000,000. And that's 1,000,000 that would need to try on your phone. FBI is probably running load tests now to see if they can brute force.