In what will go down as the most spectacular IT failure the world has ever seen, a botched software update from cybersecurity firm CrowdStrike Holdings Inc. crashed countless Microsoft Windows computer systems globally.
Microsoft Corp. and CrowdStrike have rolled out fixes and systems are being restored. But for several hours, bankers in Hong Kong, doctors in the UK and emergency responders in New Hampshire found themselves locked out of programs critical to keeping their operations afloat.
“This is unprecedented,” sa