Cybersecurity firm CrowdStrike says it sued Delta Air Lines in U.S. District Court in Georgia after a faulty software update prompted a global outage in July.
The July 19 incident led to worldwide flight cancellations and hit industries including banks, healthcare, media companies, and hotel chains.
The cyber security firm said it sued to make clear that it did not cause the harm that Delta claims and that Delta repeatedly refused assistance from both CrowdStrike and Microsoft. Delta did not immediately comment on CrowdStrike's suit. CrowdStrike is seeking a declaratory judgment plus legal fees.
Meanwhile, Delta's lawsuit, filed on Friday in Fulton County Superior Court, called the faulty software update from CrowdStrike "catastrophic" and said the company forced untested and faulty updates to its customers, causing more than 8.5 million Microsoft Windows-based computers around the world to crash.
CrowdStrike's lawsuit, also filed on Friday, said Delta's own response and technology caused delays in the carrier's ability to resume normal operations.
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