Gadgets

The real price of free apps might surprise you.

You deleted your cookies, but websites may still know it is you. Here is the hidden technology working behind the scenes.

Your Google search feels instant, but behind every click thousands of powerful computers begin working in milliseconds.

Your phone may still be found even after the battery dies. Here’s the hidden technology behind it.

Before hackers ever test your password, powerful security systems may have already identified its weaknesses. Here’s how they know in seconds.

The Target app seems to know what you need before you do. Here’s the surprising technology behind it.

Somewhere above your head right now, a machine is watching, and it can see clearly enough to read the plate on your car.

A quiet math formula decides which World Cup teams are truly “dangerous,” and it rarely picks who you’d expect.

Your phone might already be predicting the next earthquake, seconds before it happens, and you have no idea.