Last week, in a humanities class at a highly selective university in the Northeast, a student played The New York Times’ Spelling Bee game on a phone, according to another student who sat within view.

Many consumers interact with facial recognition technology each day when they unlock their iPhones. Before being added to smartphones, facial recognition technology—which uses biometric data to ...

Your Face Belongs to Us: A Secretive Startup's Quest To End Privacy as We Know It, by Kashmir Hill, Random House, 352 pages, $28.99 "Do I want to live in a society ...