Flights across Russia were grounded on Monday after a sweeping cyberattack struck Aeroflot, the country’s largest airline. The cyberattack, which crippled Aeroflot’s internal systems and led to the cancellation of more than 60 flights, was claimed by a pro-Ukrainian hacker group known as Silent Crow.

They formed a partnership with Belarusian hackers for the massive assault.

Aeroflot Targeted by Pro-Ukrainian Hacker Group Silent Crow

The groups cited Russia’s ongoing war in Ukraine as the motive behind the digital assault.

Aeroflot’s website was inaccessible as of Monday, displaying a message stating it had been “temporarily restricted.” Inside Sheremetyevo Airport in Moscow, footage showed departure screens flooded with canceled flights.

“Most Massive Cyberattack” Shuts Down Servers

The Belarusian Cyber-Partisans, posting on X, described the breach as the “MOST MASSIVE CYBERATTACK,” claiming to have destroyed over 7,000 servers and workstations within Aeroflot’s offices and affiliated data centers in Melkisarovo.

“We’ve taken control of critical Aeroflot systems,” the hackers said, “including terabytes of internal data. What we couldn’t take—we destroyed.”

Screenshots shared by the group reportedly show access to Aeroflot’s internal user directories and file storage systems. Russian prosecutors later confirmed the attack and stated a criminal investigation is underway.
Read the official statement from Russian prosecutors.

Silent Crow: A Rising Cyber Threat
This isn’t Silent Crow’s first operation. In January 2025, the group took credit for hacking Russia’s Federal Service for State Registration (Rosreestr). Using an anonymous Telegram channel, Silent Crow posted leaked data including names, addresses, birthdates, and national ID numbers of nearly 90,000 Russian citizens from the Unified State Register of Real Estate.

“Rosreestr has become a vivid example of how large state structures can fall in just a few days,” Silent Crow stated in a January 6 post. “Their supposedly well-protected data has joined our collection.”

Broader Implications for Russia’s Cyber Defense

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The Aeroflot breach underlines growing vulnerabilities in Russia’s critical infrastructure and the evolving threat from decentralized, politically motivated cyber actors. With Silent Crow emerging as a persistent threat and forging cross-border alliances, Russia’s cybersecurity defenses face mounting pressure.