 Ugly. Airline flights, banks, hospital systems, and media outlets all taken offline overnight. Cybersecurity firm CrowdStrike says the issue is not a cyber attack. Instead, says ABC's Mike Dabusky, it's tied to a software update that cybersecurity firm CrowdStrike sent out to Windows computers overnight. The faulty update appears to send computers and servers into a recovery boot loop, essentially starting the computer up over and over again but never logging in.