A court in Moscow chose a preventive measure for the Deputy General Director of Sirena-Travel JSC; he was prohibited from certain actions until June 4. Alexander Kovalchuk is accused of unlawful influence on the critical information infrastructure of Russia.
In September 2023, Aeroflot reported a global failure in the Leonardo reservation system. An agency source said that this may be due to attacks by a Ukrainian hacker group on the IT infrastructure of the Russian ticket booking system. TASS also reports that Igor Roitman, Deputy General director for IT and Production at SireNA-Travel, has been detained.