People walk next to blacked-out digital billboards at Macy's Herald Square following a global IT outage, in New York City, US on Jul 19, 2024. The latest version of its Falcon Sensor software was meant to make CrowdStrike clients' systems more secure against hacking by updating the threats it defends against. But faulty code in the update files resulted in one of the, hospitals and government offices were disrupted.
Problems came to light quickly after the update was rolled out on Friday, and users posted pictures on social media of computers with blue screens displaying error messages. These are known in the industry as"blue screens of death". The update's problem was"in a file that contains either configuration information or signatures," he said. Such signatures are code that detects specific types of malicious code or malware.
"Ideally, this would have been rolled out to a limited pool first," said John Hammond, principal security researcher at Huntress Labs."That is a safer approach to avoid a big mess like this."
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