Around the Globe a blue screen appeared as computers went down in a world-wide IT outage. Being called the blue screen of death it was a faulty update that crashed Windows according to the cybersecurity firm CrowdStrike which says it was triggered by one of its updates for Windows.

The IT outage grounded flights, knocked banks offline and media outlets off the air.

In a message on social media the President and CEO of CrowdStrike George Kurtz is being widely criticized for not apologizing when issuing his explanation for the problem. He did say that the issue had been identified, isolated and a fix has been deployed.

Full message from George Kurtz:

CrowdStrike is actively working with customers impacted by a defect found in a single content update for Windows hosts. Mac and Linux hosts are not impacted. This is not a security incident or cyberattack. The issue has been identified, isolated and a fix has been deployed. We refer customers to the support portal for the latest updates and will continue to provide complete and continuous updates on our website. We further recommend organizations ensure they’re communicating with CrowdStrike representatives through official channels. Our team is fully mobilized to ensure the security and stability of CrowdStrike customers.