Earlier this month, U.S. air carrier Delta Airlines dealt with a power outage that grounded thousands of flights world-wide during peak travel season. This outage resulted in thousands of canceled flights and tens of thousands of unhappy and stranded customers who weren’t able to get any updates via the Delta app nor the company’s flight information displays. It is estimated that the disruptive outage will cost the airline millions of dollars in lost revenue and a severely damaged reputation.

While it’s easy to feel bad for Delta, they knew this day was coming due to their legacy IT systems yet they didn’t do anything to stop it. This outage is just the latest example of the airline industry facing a meltdown due to outdated IT systems that they can’t be bothered to update. Just a month ago, Southwest Airlines dealt with a similar scenario in which a broken network router caused another 2,300 canceled flights and cost Southwest tens of millions of dollars. Legacy software and hardware being used in business critical systems should be a huge concern.

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