A bug in the Content Validator – a software element CrowdStrike relies on for testing and validating Rapid Response Content updates for its Falcon Sensors – is (partly) why the faulty update wasn’t caught in time, the company said. In a period of (approximately) an hour and 20 minutes on Friday, July 19, 2024, the defective update was delivered to around 8.5 million systems, and triggered a massive worldwide outage of Windows-based systems.

Source: Help Net Security