JD is the CEO of FS-ISAC. He joined FS-ISAC in January 2024 as Chief Security Officer, leading the organization's cybersecurity, physical security, enterprise risk management, and technology functions. In this role, Denning played a key part in strengthening sector-wide resilience by curating and disseminating foundational cybersecurity practices, translating insights from the most advanced cyber defense programs into actionable guidance for the broader financial services community.

Prior to joining FS-ISAC, JD spent more than thirteen years at Bank of America, helping lead enterprise efforts to defend against an increasingly complex and dynamic threat environment. In his most recent role, he served as Global Compliance and Operational Risk Executive, where he led the second line of defense for Global Markets Technology, Global Markets Operational Technology, and Global Banking Technology, with a focus on risk identification and mitigation.

Earlier in his career, Denning served as Director of External Affairs for the U.S. Department of Homeland Security’s Office of Cybersecurity and Communications. He also spent eleven years as a congressional staff member, where he focused on cybersecurity, telecommunications policy, and critical infrastructure protection.