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.

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

The group claimed it had accessed Aeroflot's corporate network for a year, copying customer and internal data.