The Crowdstrike glitch that just took out Windows machines all over the planet, explained by Dave Plummer. Crowdstrike made a kernel driver that watched programs' behavior to try to detect viruses before a regular anti-virus would, but it depended on an external file for updates. A recent update downloaded a file full of all 0s. And that didn't work.
CrowdStrike IT outage explained by a Windows developer - Dave's Garage
