 Hello, I'm Eileen McHugh with the BBC News. A cybersecurity firm which caused a massive global IT outage by issuing a faulty software update says the bug is fixed, but it could be some time before all systems are back up and running. The chief executive of CrowdStrike, George Kurtz, said the firm was deeply sorry for the disruption caused by the fault which affected Microsoft Windows. David Waddell has more details on CrowdStrike.