By Alexander Marrow and Gleb Stolyarov (Reuters) -Russian airline Aeroflot cancelled dozens more flights on Tuesday but said it had now stabilised its schedule after a major cyberattack a day earlier,

Two pro-Ukraine hacking groups claimed to have carried out a year-long operation to penetrate Aeroflot's network

Aeroflot, Russia’s largest airline, has suffered a cyberattack which disrupted its operations and grounded dozens of flights. The news was confirmed by the airline, as well as by the Kremlin itself - and also by two cybercriminal groups who claimed responsibility for the attack - Silent Crow, and Cyberpartisans.