I don't think it's clear in the article if the initial alert was sent out manually or by an automated system. The first mention of it sounds manual, but then la

I don't think it's clear in the article if the initial alert was sent out manually or by an automated system. The first mention of it sounds manual, but then later it sounds like it may have been automated, since they're trying to move the blame down one level to whoever initiated the training exercise that caused the alert.