Brian currently serves as the Vice President and Chief Security Officer (CSO) at AVANGRID, an energy company with assets and operations in 24 states. He is responsible for the company’s cybersecurity, privacy, physical security, threat management, and business continuity departments.

In 2018, Brian was appointed by the President of the United States to serve as the sixth Assistant Secretary for Infrastructure Protection at the U.S. Department of Homeland Security. He was also the first Assistant Director for Infrastructure Security at the Cybersecurity and Infrastructure Security Agency (CISA). He has spent time during his career in the US Marine Corps and various private sector agencies with the goal of protecting the United States from security threats.