 Cybersecurity company CrowdStrike has tens of thousands of customers, and its software is deployed on millions of computers around the world. That software requires deep access to devices to keep track of all digital activity and flag anything suspicious. But because of those unique privileges, even a minor software update can disrupt the machine's operating system. That's exactly what happened when CrowdStrike pushed what it called a minor content update for Windows users. It was a mistake that crashed hundreds of thousands of devices.