- Cărți electroniceRussian Cyber ActivityFederal Bureau of Investigation
- Cărți electroniceRussian Cyber Activity – The Grizzly Steppe ReportU.S. Department of Homeland Security
- Cărți electroniceThe Grizzly Steppe Report (Unmasking the Russian Cyber Activity)U.S. Department of Homeland Security
- Cărți electroniceFederal Preparedness Circular 65U.S. Department of Homeland Security
- Cărți electroniceFederal Preparedness Circular 65U.S. Department of Homeland Security