A cyber attack grounded a fleet of aircraft in Poland on Sunday. All the planes were part of the Polish national airline, LOT. although the Polish domestic intelligence agency is being stingy with details, they claim the 1,400 passengers who were stranded were never actually in any danger. The flight plan systems that were affected are not used not used during actual flight. Therefore, none of the planes already en route were affected, only those on the ground at Chopin airport in Warsaw.