If you were at Delhi airport this week, you probably saw long queues, frustrated flyers, delayed departures and confused staff running around. Over 100 flights across Delhi and nearby cities were hit, and it all came down to one major tech breakdown inside the heart of India’s aviation system. Some reports even hint that a malware attack could be behind it.

Flight operations at Delhi Airport are experiencing delays

So what exactly went wrong at India’s busiest airport? And how did one glitch cripple operations across North India? Let’s break it down.

First, what went wrong

Late on Thursday night, a key system used by Air Traffic Control (ATC) stopped working. This system, called the Automatic Message Switching System (AMSS), shares essential data with airlines and ATC such as flight pl

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