All mainstream credit card numbers obey a mathematical trick designed to catch the most common typos. It’s called the Luhn algorithm, named after IBM researcher Hans Peter Luhn, who patented it in ...

T. Christian Miller, a reporter at ProPublica, explains how EviCore’s tool is manipulated to increase denials and cut costs. Some of the biggest health insurers in the country are turning to an ...

Ever wondered how social media platforms decide how to fill our feeds? They use algorithms, of course, but how do these algorithms work? A series of corporate leaks over the past few years provides a ...