Greg Crabb

Greg Crabb


The former Chief Information Security Officer for the U.S. Postal Service, Gregory (Greg) Crabb has over 25 years of law enforcement and security experience and specializes in enabling cyber security leaders and organizations to protect their digital assets against evolving cyber threats. His clients have included the Department of Homeland Security, defense contractors, the United Nations International Computer Center and financial institutions.

Greg was an early practitioner of Carnegie Mellon’s Software Engineering Institute Resilience Management Model and as Vice President, Chief Information Security Officer for the U.S. Postal Service, secured the agency’s technology and information assets against nation-state threat actors. These efforts ensured the security of military mail globally and of vote-by-mail ballots during the unprecedented 2020 U.S. elections.

Greg is a graduate of the Postal Service’s Advanced Leadership and Executive Leadership programs and is a certified Chief Information Security Officer (CISO) from Carnegie Mellon University. He has led the training of nearly 500 information security professionals in the Defense Industrial Base’s Cybersecurity Maturity Model (CMM).