Google’s Pixel 4 face unlock has one major privacy weakness

Photo by Vjeran Pavic / The Verge Google came up with its own face unlock system for the Pixel 4 and 4 XL using those advanced sensors in the phone’s top bezel. The technology behind it is similar to Apple’s Face ID, and aside from just letting you into your phone, Google believes face unlock is secure enough to serve as an authentication method across Android. (There’s no more fingerprint sensor on the Pixel 4, remember.) And it’s very fast. But BBC News reporter Chris