1. Dominion Energy partnered with public and private agencies for the 'Cyber Fortress' event simulating real-world cyberattacks on the power grid. 

2. Participants include the Defense Department, intelligence community, and federal and state law enforcement.

3. The exercise involves "red teams" launching cyberattacks and "blue teams" defending and reversing effects on a simulated grid. 

4. Focus targets include nation-state actors and sophisticated criminal groups with advanced technology.

5. Cyber Fortress emphasizes public-private cooperation in addressing vulnerabilities in critical infrastructure. 

6. Experts stress that a significant attack on the grid could disrupt daily life and threaten national security. 

7. U.S. adversaries continue increasing attempts to attack key energy infrastructure. 

8. Marine Cyberspace Warfare Group members use this event to improve agile threat responses. 

9. Virginia’s Public Safety Secretary highlighted the importance of cybersecurity collaboration during Cyber Fortress. 

10. The event serves as a reminder to the public of the importance of cybersecurity awareness and personal protection measures. 

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