 One of the tricky parts of security software is it needs to have absolute privileges over your entire computer in order to do its job. So if there's something wrong with it, the consequences are vastly greater than if your spreadsheet doesn't work. It's not clear whether the initial Microsoft Azure outage was coincidental or linked to the crashes caused by the CrowdStrike update, but security experts said it was possible. Most likely, if the two are related, it would be because CrowdStrike's update affected computers responsible for running Azure, triggering its shutdown.