"So far, all indications point to a software problem with Crowdstrike, but we know little about its root cause.
The technology is designed to protect computers against cyber incidents. As of 8am, Crowdstrike had issued no public update on the origin of the problem.
However, on a Reddit forum used by Crowdstrike engineers and cyber experts, users pointed to an update to customers which said: “CrowdStrike is aware of reports of crashes on Windows hosts related to the Falcon Sensor. Symptoms include hosts experiencing a bugcheck\blue screen error related to the Falcon Sensor.”
https://www.yahoo.com/news/why-internet-down-worldwide-everything-075633693.html
Now, where have we heard that 'Crowdstrike" name before? Things that make you say, "Hmmmmm...."