Bitcoin is underpinned by unbreakable codes, but the secret keys that protect personal fortunes are easily lost or stolen.
An industry hopes to make Web-connected gadgets from different makers work well together.
Street View-style imagery of interior spaces lets mobile devices locate themselves more accurately than is possible with GPS.
Twitter’s footprint is growing fast, although English speakers in the U.S. remain the largest demographic. The trick now is to turn its global presence into advertising dollars.
Novel modes of interaction are inspiring independent games companies to come up with completely new types of games.
Memoir, a new iPhone app, is meant to call up your digital memories at convenient times and places.
A new brain-imaging technology may reveal the true risk of repetitive head injury in contact sports.
A new nerve interface can simulate a sense of touch from 20 spots on a prosthetic hand.
Amazon says it wants to offer 30-minute drone delivery. But companies actually working on the technology outline the limitations.
The website for the Affordable Care Act was doomed by an inordinately complex setup that tried to link disparate databases in real time.