Microsoft Outlook, US Air Traffic Systems Recover After 14,000 Flight Cancellations
Updated
Updated · The Washington Post · Nov 14
Microsoft Outlook, US Air Traffic Systems Recover After 14,000 Flight Cancellations
3 articles · Updated · The Washington Post · Nov 14
Summary
U.S. air traffic communications and Microsoft Outlook were restored after a week of disruptions that snarled travel and work nationwide.
At least 14,000 U.S. flights were canceled Friday and Saturday, while Outlook's outage also hit calendars and other Microsoft products used across workplaces.
Officials said the failures were unrelated and found no sign of a cyberattack or AI threat; early evidence pointed instead to maintenance problems.
Sean Duffy said a contractor replacing old copper lines with fiber likely triggered the FAA breakdown, while Microsoft said it had recently upgraded server capacity.
The twin outages landed amid a broader run of high-profile tech failures and cyber incidents, sharpening concern over the fragility of critical digital infrastructure.