An update released by cybersecurity company CrowdStrike failed, causing a chain reaction in global IT systems on Friday, with industries ranging from banks to airlines experiencing blue screens. 😅

After referring to CrowdStrike's official statement, it turned out that a problematic channel file called "C-00000291*.sys" was released in an automatic update of Falcon Sensor, a software on the Windows system, at 04:09 UTC time. This file has a bug and "reads a non-existent address" (allegedly) when loading the driver, causing the Windows system to crash 😬

, BSOD (blue screen of death ☠️🟦)

Both Linux and MacOS are not affected. It is estimated that either only Windows has this update, or everyone's system files are different, and L and M just happen to have no bugs. Phew..

In the end, only Microsoft was caught in the crossfire.

The repair is also very simple. Reboot into safe mode, enter C:\Windows\System32\drivers\CrowdStrike and delete this file.

But such a simple thing is not something that everyone can do. I saw a bunch of amateurs on the IT forum fall into a rampage mode, because if they don't enter safe mode, they will reboot loop, that is, Windows restarts over and over again

🤣

, until they drive people crazy. . .

Of course, it's not funny, because it is said that 911 is also down, and the equipment in the hospital is also affected

Today, the line of the IT department is finally no longer have you turned it off and on again?

In fact, I am very dissatisfied with the official statement. It mentioned the problem file and the solution, but it didn't mention why the update was pushed to the content release without testing! A bug can cause global IT outage. I am afraid that Crowdstrike will not have an easy time in the future if it doesn't explain RCA clearly (btw, the stock has already fallen in response).

Microsoft may not be able to just sit there and watch. Although it was an accidental injury, its infamous BSOD+loop with poor exception handling at startup is also a historical disease.

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