Major IT outage takes out banks, airlines and businesses across the world

A defective CrowdStrike Falcon Sensor content update for Windows triggered global blue screen outages across airlines, banks, media, healthcare, and other sectors, while Mac and Linux systems were unaffected. CrowdStrike confirmed it is not a cyberattack, has isolated the issue, and is deploying a fix; Microsoft reported related service impacts. CISA warned that threat actors are exploiting the incident for phishing and other malicious activity amid widespread operational disruptions.