Delta Airlines laces into CrowdStrike, says it lost $500m

Delta Airlines has expressed frustration with CrowdStrike in a new letter on Thursday, as the two companies continue to trade jabs after last month's massive global network outage. The US-based carrier accused the cybersecurity company of "negligence", saying it was forced to cancel thousands of flights because of the outage and had lost at least $500m (£392m) as a result.CrowdStrike had denied it was solely…