Round 8.5 million gadgets — lower than 1 % Home windows machines globally — have been affected by the current CrowdStrike outage, in response to a Microsoft weblog publish by David Weston, the corporate’s vp of enterprise and OS safety.

These are the primary actual numbers launched by both Microsoft or CrowdStrike across the scale of yesterday’s outage, which was attributable to an replace to CrowdStrike’s cybersecurity software program that led Home windows machines to crash. (Mac and Linux gadgets weren’t affected.)

Though the variety of affected gadgets was comparatively low, the havoc was widespread and world, affecting banks, retailers, brokerage corporations, rail networks, and extra. Airways halted flight operations around the globe.

“Whereas the proportion [of affected devices] was small, the broad financial and societal impacts mirror using CrowdStrike by enterprises that run many important companies,” Weston wrote.

He didn’t say what share of Home windows gadgets with CrowdStrike software program have been affected. It’s additionally price noting that even when just one laptop crashed, it might probably take down a complete community or datacenter.

Weston additionally wrote that “though this was not a Microsoft incident,” the corporate has been working with CrowdStrike to deal with the problem. Methods could possibly be sluggish to recuperate if each affected laptop requires a handbook repair, however Weston mentioned Microsoft and CrowdStrike have developed “a scalable resolution that may assist Microsoft’s Azure infrastructure speed up a repair.”