[ss64]

The obvious inference from this is that the bad update was trickled out to some customers on the 16th and it took them 2 days to report the issue because they were all busy figuring out why every machine was blue-screening. Alternatively it took CrowdStrike 2 days to notice that their traffic was disappearing and put 2 and 2 together as to why.

[flerchin]

I infer that they pushed a (slightly) bad update on the 16th and tried to correct on the 19th, and that the correction was the update that hosed the world.

[SketchySeaBeast]

I feel like there's an army of sys admins who would be speaking up right now if things started going down on the 16th, but that doesn't seem to be the case.