In what could be the most significant cyberattack targeting Russian civil infrastructure, hackers say they took down Aeroflot, Russia’s largest airline.

In what could be the most significant cyberattack targeting Russian civil infrastructure, hackers say they took down Aeroflot, Russia’s largest airline.

Russia’s flagship carrier, Aeroflot, faced a widespread disruption on Monday morning as a catastrophic failure of its information technology systems forced the airline to cancel dozens of flights. The incident affected both domestic and international operations, leaving thousands of passengers stranded and triggering a criminal investigation.