CrowdStrike Shares Decline Amid Fallout from Microsoft Windows Outage

CrowdStrike’s stock experienced a 13.5% drop in Monday’s trading session as the cybersecurity software firm continued its efforts to support clients from various sectors in recovering from a malfunction that left millions of Microsoft Windows devices offline last week.

The company released a faulty update to its Falcon vulnerability-protection software early on Friday, leading to system crashes in PCs, data center servers, and display screens. This resulted in disrupted services, including grounded flights and canceled medical appointments. Microsoft reported that approximately 8.5 million Windows devices, accounting for less than 1% of the global total, were affected by the incident.

After a 11% decrease in CrowdStrike shares on Friday, reports emerged over the weekend of Windows devices showing the “blue screen of death” on social media, signaling system issues requiring administrative attention. CrowdStrike announced on Sunday that they were testing a remedial approach to expedite the resolution process for impacted machines.