Up Next
Back to Show
PBS News Hour
How a software update sparked tech disruptions worldwide
A tech outage around the globe halted flights, disrupted emergency services and created headaches for businesses. The underlying problems behind the glitch were fixed by Friday afternoon, but the ripple effects lasted throughout the day and may continue into the weekend. William Brangham discussed what went wrong and the risks with Bruce Schneier, an expert in computer security and technology.
