A cyberattack on Russian airline Aeroflot has caused a major outage, leading to over 100 flight cancellations and delays.

Russian prosecutor said it opened a criminal investigation into the cyberattack targeting Aeroflot, the largest airline in Russia.

The news was confirmed by the airline, as well as by the Kremlin itself - and also by two cybercriminal groups who - Silent Crow, and Cyberpartisans. The former is a Ukrainian group, while the latter - Belarusian.