Delta is suing CrowdStrike over software update that caused mass flight disruptions

Delta Air Lines sued cybersecurity firm CrowdStrike in a Georgia court on Friday after a global outage in July caused mass flight cancellations, disrupted the travel plans of 1.3 million customers and cost the carrier more than $500 million.

Delta’s lawsuit filed in Fulton County Superior Court called CrowdStrike’s flawed software update “catastrophic” and said the firm “forced untested and flawed updates on its customers, causing the crash of more than 8.5 million computers based on on Microsoft Windows worldwide”.

The incident of July 19 led to worldwide flight cancellations and hit industries around the world, including banking, healthcare, media companies and hotel chains.

“Delta’s claims are based on debunked misinformation, demonstrate a lack of understanding of how modern cybersecurity works, and reflect a desperate attempt to shift the blame for the slow recovery of its failure to modernize its legacy IT infrastructure,” CrowdStrike said friday evening

Delta, which said it had purchased CrowdStrike products since 2022, said the outage forced it to to cancel 7,000 flightsimpacting 1.3 million passengers in five days.

Delta said CrowdStrike is liable for more than $500 million in out-of-pocket losses, as well as an unspecified amount in lost profits, expenses, including attorneys’ fees, and “reputational harm and future loss of revenue.”

The incident determined The US Department of Transportation to open an investigation.

“Had CrowdStrike tested the faulty update on even a single computer prior to deployment, the computer would have crashed,” Delta’s lawsuit says. “Because the faulty update could not be removed remotely, CrowdStrike crippled Delta’s business and created immense delays for Delta’s customers.”

Delta said that as part of its IT planning and infrastructure, it has invested billions of dollars “in licensing and building some of the best technology solutions in the airline industry.”

CrowdStrike asked questions why did Delta do so poorly than other airlines and said it had minimal liability, which Delta denied.

Last month, a CrowdStrike executive apologized to Congress for the botched software update.

Adam Meyers, senior vice president at CrowdStrike, said the company released a content configuration update for its Falcon Sensor security software that resulted in system crashes around the world. “We are deeply sorry that this happened and we are determined to prevent this from happening again,” Meyers said.

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