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San Francisco International Airport. Photo by Bill Larkins, Courtesy Wikimedia Commons.

A global IT outage affecting systems linked to Microsoft and cybersecurity giant Crowdstrike canceled flights at San Francisco International Airport and took down several government websites and systems Friday morning.

While systems at SFO are now functioning, according to SFO spokesperson Doug Yakel, airlines report systems were still coming back online as of 5:55 a.m. Based on tech company FlightAware’s tracking data, at least 69 cancellations were recorded at SFO on Friday without a specified cause.

“We recommend travelers contact their airline directly for the status of their flight,” Yakel said.

At San Francisco Bay Oakland International Airport, spokesperson Kaley Skantz confirmed that Delta Air Lines canceled an arrival and a departure flight there. Delta Air Lines is one of the numerous carriers that canceled their flights around the time of the IT outage.

Palo Alto City officials confirmed Friday morning that their systems, including the city website, were disrupted by the outage too. The site was restored by mid-morning on Friday.

“Our website provider, Granicus, is working to resolve an issue navigating to their products including our website, because of a third-party issue with Crowdstrike,” the city wrote in a social media post.

The city of Menlo Park experienced similar issues with email and website outages. 

“We experienced some issues last night (email down briefly) and our website, hosted by Granicus, was out this morning until 10:55 a.m.,” said Menlo Park’s Public Engagement Manager Kendra Calvert in an email to this news organization. “Everything is back to working normally. We did not receive any questions and proactively updated the community.”

Menlo Park updated residents on the status of the outages via the city’s social media channels.

The town of Atherton did not experience any outages, according to Deputy City Manager/City Clerk Anthony Suber.

The Santa Clara Superior Court also reported its systems down Friday morning.

“In response to this outage, our IT department is actively deploying technicians to each courthouse,” a press release from the court states. “We are prioritizing courtrooms with morning calendars, ensuring the continuous operation of safety and security-related equipment, and maintaining service at Clerk’s Office public service windows. These steps are essential to minimize disruptions and ensure that critical court functions continue smoothly.”

Other regional systems remained unaffected. Caltrain and BART each reported in tweets this morning that there would be no disruptions to trains and their systems were fully functioning.

This story was originally published by Bay City News Service. Embarcadero Media staff contributed localizing details.

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