A cyber attack against Polish flagship carrier LOT grounded more than 1,400 passengers at Warsaw's Frederic Chopin Airport on Sunday 22nd June, a spokesman said.
The attack occurred at around 4:00 pm local time (1500 GMT), and targeted the airline's ground operations system, it said in a statement. This incident led to the cancellation of 10 flights departing from Warsaw, and was resolved by 9:00 pm.
"This is the first attack of its kind," LOT spokesman Adrian Kubicki told TVN 24 television.
Polish security services are investigating so it will be interesting to hear more details of the actual attack in due course...
Update as of 23/06/15
This attack have exploited the flight plan-delivery protocol used by every airline. If true would be the first confirmed hack of its kind, it’s very similar to a mysterious grounding of United Airlines planes that happened last month.
Update as of 24/06/15
Appears this was a DDOS attack over the over-ground terrestrial telecommunication network, which I guess FPD Protocol uses..
"LOT became an object of a deliberate attack on the over-ground terrestrial telecommunication network," LOT spokesman Biuro Prasowe told Information Security Media Group. "The attack was aimed at blocking our network and caused [us to lose the] ability to issue flight plans - documents required for each crew to depart."