The websites of several German airports crashed today due to a possible denial-of-service (DDoS) hacker attack, BTA reported. 

This type of computer attack aims to limit, hinder or stop users' access to services on the Internet.

Airports in Dusseldorf, Nuremberg, Dortmund and Erfurt-Weimar were among those affected by the website crashes.

The reason for the Lufthansa system failure became clear

The hacking attack is not reported to have disrupted air traffic. 

More than 200 flights were canceled yesterday at Frankfurt airport, Germany's largest, due to a crash in Lufthansa airline's computer systems.

Telecommunications service provider Deutsche Telekom said that during excavation work by employees of another company in the area of ​​a railway line in Frankfurt, four fiber optic cables were severed, causing the collapse. 

German airports

hacker attack