Microsoft's widespread outage caused disruption to flights, banks, media and companies around the world. Hours after the technology company announced that it would gradually fix the problem of accessing Microsoft 365 applications and services, the disruption intensified.

Pearson Toronto International Airport and Toronto's Billy Bishop Airport both confirmed that the global outage has disrupted some airlines and that there is a possibility of flight delays and cancellations. "Sunwing and Flair are not affected."

Porter Airlines said it had canceled all flights due to a systems outage as of noon Friday. DownDectector, a website that tracks Internet outages, reported outages at Visa, ADT Security, Amazon and airlines including American Airlines and has confirmed Delta. It seems that the problem is from a faulty security update file that CrowdStrike released and caused Windows-based systems to encounter the blue screen of death. According to media reports, this is definitely Some Vancouver International Airport flights are affected. In the United States, United, American, Delta and Alginate airlines have all been disrupted.

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