As losses mount, CrowdStrike says bug in quality-control process led to botched update

A software bug in CrowdStrike’s quality-control system caused the software update that crashed computers globally last week, the U.S. firm said on Wednesday, as losses mount following the outage which disrupted services from aviation to banking.

The extent of the damage from the botched update is still being assessed. On Saturday, Microsoft said about 8.5 million Windows devices had been affected, and the U.S. House of Representatives Homeland Security Committee has sent a letter to CrowdStrike CEO George Kurtz asking him to testify.