It’s one of the sad facts of mobile authentication that the industry tends to initially support the least effective security options. Hence, phones initially supported authentication based on fingerprints (which can be impacted by prescriptions, cleaning products, hand injuries, and dozens of other factors) and then moved on to facial recognition.
In theory, facial recognition is supposed to be more accurate. Mathematically, that’s fair, as it is examining far more data points than scanning a fingerprint. But the reality in the real world is much more problematic. It requires a precise distance from the phone and yet offers no pre-scan markers for the user to know when they hit it correctly. That’s one reason I see facial recognition reject a scan roughly 40% of the time — even though it will approve a positive scan two seconds later.
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