Delta Airlines filed a lawsuit against security software vendor CrowdStrike after an IT outage in July caused 7,000 flight cancellations. In the filing, Delta accused CrowdStrike of breach of contract and negligence and asked for damages to cover its $500 million in losses. 

In the complaint, Delta said, “CrowdStrike caused a global catastrophe because it cut corners, took shortcuts, and circumvented the very testing and certification processes it advertised, for its own benefit and profit. … If CrowdStrike had tested the Faulty Update on even one computer before deployment, the computer would have crashed.”

A CrowdStrike spokesperson told CNBC that, “[w]hile we aimed to reach a business resolution that puts customers first, Delta has chosen a different path. … Delta’s claims are based on disproven misinformation, demonstrate a lack of understanding of how modern cybersecurity works, and reflect a desperate attempt to shift blame for its slow recovery away from its failure to modernize its antiquated IT infrastructure.”