Locked Out: A Biometric Brouhaha

The Wall Street Journal: “The rise of facial-recognition technology such as Microsoft Corp.’s Windows Hello and Apple Inc.’s Face ID means computers now seem to be passing judgment on users’ appearances. When a face doesn’t measure up, people are left to ponder whether they look their best, whether they use too much makeup, why they changed their hairstyle—and perhaps whether they even look like themselves. Users report their devices won’t unlock unless they wear the same makeup as when they set it up. Others complain it can’t identify them in the morning when they first tilt phone to face on the pillow. Men who shave their beards say their phones suddenly treat them like a passing stranger.”

“Windows Hello aims to balance security with usability, said Dave Bossio, a Microsoft program manager. An algorithm uses the infrared camera on laptops and other devices to create a mathematical model based on facial ‘landmarks’ like the eyes, nose and mouth. Makeup, glasses, beards, lighting and other factors can affect the system, and widening the range of acceptability too much creates a security risk, he said.”

“To avoid the makeup problem, Apple’s engineers designed a camera system that projects 30,000 infrared dots across a user’s face to create a 3-D model stored on the phone, according to people familiar with the project. Apple said the chances the iPhone X could be unlocked by a random person’s face are one in a million.”

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