CrowdStrike has promised to improve how it tests software after its faulty content update for Windows systems caused a mass global IT outage on Friday.
The cybersecurity company’s mistake resulted in problems for banks, hospitals and airlines as millions of PCs displayed “blue screens of death”.
In a detailed review of the incident published on Wednesday, external, CrowdStrike said the problem occurred due to a “bug” in the system which was meant to check software updates were working properly.
The glitch meant its system did not identify “problematic content data” in a file.
The company said it could prevent the incident from happening again with better software testing and checks, including more scrutiny from developers.
The faulty update crashed 8.5 million Microsoft Windows computers around the world and George Kurtz, Crowdstrike’s boss, has apologised for the impact of the outage.
But cybersecurity experts told BBC News that the review revealed “major mistakes” were made by the firm.
“What’s clear from the post mortem is they didn’t seem to have the right guardrails in place to prevent this type of incident or to reduce the risk of it occurring,” said cyber-security consultant Daniel Card.
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