‘Largest IT outage in history’ leaves world reeling

Financial services and doctors’ offices were disrupted on Friday, while TV broadcasters went offline as businesses worldwide grappled with an ongoing major IT outage. Air travel has been particularly hit, with planes grounded, services delayed and airports issuing advice to passengers.

Earlier on Friday, cybersecurity giant CrowdStrike experienced a major disruption, the company told NBC, following an issue with its latest tech update.

The company’s CEO George Kurtz has since said that the company is “actively working with customers impacted by a defect found in a single content update for Windows...