A major cyber outage caused by an overnight software upgrade created chaos for travelers at Minneapolis-St. Paul International Airport and airports around the globe Friday, grounding thousands of flights and disrupting Minnesota businesses, hospitals, government services and even the morning rush hour commute.
The outage, which affected Microsoft Windows operating systems, forced the state’s Driver and Vehicle Services exam stations to administer written road tests with pen and paper. Anybody trying to access the Department of Public Safety website was greeted with a message that read “service unavailable.”
In the Twin Cities, the biggest impact was felt at MSP, where more than 140 arrival and departure flights were canceled before noon on Friday.
On Saturday, at least 89 arrival and departure flights were canceled just after noon and 78 were delayed. Airport spokesman John Welbes said the brunt of flight cancellations passed on Friday, but advised people flying out of MSP to check the status of their airline’s flight before going to the airport.
“Just like with winter storms, if flights are canceled in other parts of the country, they don’t make it here,” airport spokesman Jeff Lea said Friday. “We could see the domino effect.”
At countless establishments, computers crashed and displayed the “blue screen of death.” Officials in Ramsey and Anoka counties, among others, reported some curtailed services because of downed computers.
At hospitals and health care organizations, the outage affected everything from some electronic medical records and dictation applications to individual workstations and some medical equipment and machines.
“Hospitals and health systems are assessing impacts and implementing workarounds and fixes as quickly as possible,” the Minnesota Hospital Association said.