A global IT crash caused by an antivirus update led to widespread disruption on Friday, affecting airlines, banks, media, and more. The update to CrowdStrike's Falcon software, running on Microsoft Windows, resulted in system crashes and flight cancellations. By Saturday, airports in Europe and Asia had largely resumed normal operations. CrowdStrike issued an apology and released a fix. The White House and global authorities are monitoring the situation, which has led to increased scam risks. Experts are calling for a reassessment of reliance on major tech systems.