Delhi Airport Hit by Rare GPS Spoofing Attacks Causing Flight Delays and Diversions

Delhi’s Indira Gandhi International Airport witnessed an unusual series of GPS spoofing incidents this week, where fake satellite signals were transmitted to mislead aircraft about their real positions. These rare cyber disruptions, more common in conflict zones or near sensitive borders, created severe flight congestion and diversions. 

According to reports, more than 400 flights were delayed on Friday alone, as controllers struggled to manage operations amid both spoofing interference and a separate technical glitch in the Air Traffic Control (ATC) system. The cascading impact spread across North India, disrupting schedules at several major airports.

Earlier in the week, Delhi Airport ranked second globally for flight delays, as reported by the Times of India. 

At least seven flights had to be diverted to nearby airports such as Jaipur and Lucknow, even though all four of Delhi’s runways were fully operational. On Tuesday, the Navigation Integrity Category value—a critical measure of aircraft positioning accuracy—fell dramatically from 8 to 0, raising alarms within the aviation community. Pilots reported these irregularities within a 60-nautical-mile radius of Delhi, prompting the Directorate General of Civil Aviation (DGCA) to initiate an investigation, as confirmed by The Hindu. 

The situation was worsened by the temporary shutdown of the main runway’s Instrument Landing System (ILS), whi

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