Pro-Ukrainian hackers take credit for attack that snarls Russian flight travel

People wait for their flights at the Sheremetyevo International Airport on the outskirts of Moscow on July 28, 2025. A cyberattack on Russia's national airline Aeroflot grounded 42 flights on July 28, officials said, with a Ukrainian and a Belarusian hacker group claiming responsibility for the incident. (Photo by TATYANA MAKEYEVA / AFP) (Photo by TATYANA MAKEYEVA/AFP Credit: Getty Images

Russia’s biggest airline cancelled dozens of flights on Monday following a failure of the state-owned company’s IT systems and, according to a Russian lawmaker and pro-Ukrainian hackers, was the result of a cyberattack, it was widely reported.

The airline, Aeroflot, said it cancelled about 40 flights following a “technical failure.” An online departure board for Sheremetyevo airport showed dozens of others were delayed. The cancellations and delays hobbled traffic throughout Russia and left travelers stranded at airports. The affected routes were mostly within Russia but also included ...