Apple's Face ID: Not So Great for Kids and Twins

The iPhone X might be the future of Apple’s smartphone design, but its lauded Face ID facial recognition system has an issue with people under 13: it’s much more difficult to tell them apart.

In a security guide published Wednesday, Apple recommends that children under the age of 13 do not use Face ID due to the probability of a false match being significantly higher for young children. The company said this was because ?EU?their distinct facial features may not have fully developed?EU?.

While few young children are likely to be given a £999 iPhone, false matches are also more likely for twins and siblings. In all those situations, the company recommends concerned users disable Face ID and use a passcode instead.

For most users — those over 13 without “evil twins,” as Apple’s head of iOS Craig Federighi describes them — the bigger concern is deliberate attacks. Touch ID, Apple’s fingerprint sensor, was famously bypassed just two days after it was launched in the iPhone 5S, using a fake fingerprint placed over a real finger.

With Face ID, Apple has implemented a secondary system that exclusively looks out for attempts to fool the technology. Both the authentication and spoofing defense are based on machine learning, but while the former is trained to identify individuals from their faces, the latter is used to look for telltale signs of cheating.

“An additional neural network that’s trained to spot and resist spoofing defends against attempts to unlock your phone with photos or masks,” the company says. If a completely perfect mask is made, which fools the identification neural network, the defensive system will still notice — just like a human.

Apple is also confident that it won’t fall prey to issues of algorithmic bias that have plagued many attempts to use neural networks at scale. High-profile examples of…
Source: Mobile Tech Today

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