A power failure near Delta’s Atlanta headquarters triggered a major system outage on August 8. Experts ask why this airline wasn’t better prepared to deal with a related outage. “For a power failure to cause this level of disruption in the 21st century is very surprising,” says Alan Woodward, a computer science professor at the University of Surrey. Delta is also warning that flight-status systems – when they can be reached – have been relaying incorrect information. Delta has been left apologizing for the outage and attempting to alert customers.”]
Source: https://www.cuinfosecurity.com/blogs/system-outage-grounds-delta-flights-worldwide-p-2208