A routine update to CrowdStrike's security features triggered a crash in digital communication systems, inventory systems, and financial systems worldwide, resulting in a loss of nearly $5.4 billion for US companies. The update affected millions of Windows systems and caused significant disruptions across various sectors. Delta Airlines alone lost $380 million and had to cancel hundreds of flights due to IT outages caused by CrowdStrike's error. The incident also impacted banks worldwide, including Bank of America, Wells Fargo, and Capital One. As a result, CrowdStrike's market value dropped by 37.57%, and the company is now facing a class action lawsuit over travel disruptions. Microsoft has since published a recovery tool to fix the system crash caused by CrowdStrike's outage. This event highlights the critical role of cybersecurity in protecting digital infrastructure and the need for accountability in the tech industry. [c1da70b9]