Geoff Brown was appointed the Head of New York City Cyber Command in July 2017. In this role, Geoff is charged with setting Citywide cybersecurity policies, directing response to cyber incidents, and advising agencies on the City's overall cyber defense.

Prior to joining the NYC government, Geoff worked in financial services, developing and operating threat management disciplines including threat intelligence, detection, response and countermeasures. He led First Data Corporation’s Cyber Security and Fraud Threat Management program, consisting of cyber threat and intelligence, security operations, and countermeasures functions. He also led JPMorgan Chase’s cyber threat and intelligence team.

Prior to that, Geoff also served in the federal government, including work with the National Commission for Terrorist Attacks Upon the United States (the 9/11 Commission), supporting the investigation’s work with the first responder community in NYC. Geoff is a graduate of Middlebury College.