Delta says chaos after CrowdStrike outage cost it $380 million in revenue CNBCDelta Sees $380 Million in Lost Sales From System Breakdown BloombergMicrosoft lashes out at Delta: Your ancient tech caused the service meltdown Yahoo FinanceDelta passengers sue airline over refund refusals after CrowdStrike meltdown CNNDelta to CrowdStrike: Don’t Blame Us for Tech Outage Problems The Wall Street Journal