A day after an IT system outage affected German airline Lufthansa's flight operations and left thousands of passengers stranded at Frankfurt airport, the websites of at least three airports in Germany - Düsseldorf, Nuremberg and Dortmund - went offline on Thursday . The back-to-back interruption in operations has given rise to suspicions of a possible cyber attack.
A spokesman for Dortmund airport told news agency Reuters they suspected a possible 'hacker attack' as the reason for the disruption. "We are troubleshooting but it is unlikely that the failure was caused by a routine overload," the spokesman said.
As per reports, the cyber attack could be a DDoS, which sends high volumes of traffic to target and knock down servers.
Reports said that around 200 flights of the Lufthansa airline were canceled on Wednesday as the carrier faced an IT outage. The airline was forced to divert and cancel flights, leaving thousands of passengers stranded for hours. Planes arriving at Frankfurt Airport were diverted to Munich, Nuremberg and Düsseldorf.
The airline resumed its flight operations on Thursday. "Operations have returned to normal for the evening and tomorrow ... however, if you are flying on Friday please consider that there are upcoming strikes at airports in FRA (Frankfurt) and MUC (Munich)," Lufthansa airline said. Tweeted.
The airline also plans to cancel at least 1,200 flights on Friday because of the strike at its main Frankfurt and Munich hubs. Verdi official Christine Behle said in a statement: "Employees are continuing to jointly exert pressure on the employers concerned as previous talks did not yield any results."
Airline workers are demanding better conditions of employment due to increase in the cost of living.
According to news agency Bloomberg, the strikes were called after telecommunication lines were accidentally cut on Wednesday, which is also a possible reason for Lufthansa airline's closure for the day.
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