Staff members from the US Nuclear Regulatory Commission’s (NRC’s) Office of Nuclear Security and Incident Response and Office of Nuclear Reactor Regulation held a public meeting on June 17 to discuss a summary of the Assessment of the NRC’s Power Reactor Cyber Security Program. In response to the Nuclear Energy Institute’s (NEI’s) PRM-73-18, “Petition to Amend 10 CFR 73.54, ‘Protection of Digital Computer and Communication Systems and Networks’,” and based on NRC guidance, this Assessment marked 10 years since the publication of 10 CFR 73.54.