MOSCOW (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 on Monday to have carried out a year-long operation to penetrate Aeroflot's network.

A cyber attack on Russian state-owned flagship carrier Aeroflot caused a mass outage to the company’s computer systems on Monday, Russia’s prosecutor’s office said, forcing the airline to cancel more than 100 flights and delay others.

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