2024 Federal Information Security Modernization Act

The Federal Information Security Modernization Act of 2014 (FISMA) requires each agency’s Inspector General (IG) to conduct an annual independent evaluation to determine the effectiveness of the information security program (ISP) and practices of its respective agency. Our objective was to determine the effectiveness of the Tennessee Valley Authority’s (TVA) ISP and practices as defined by the FY 2023 – 2024 IG FISMA Reporting Metrics. Our audit scope was limited to answering the fiscal year (FY) 2024 IG metrics, which include 20 core IG metrics and 17 supplemental IG metrics. The FISMA methodology considers metrics at a level 4 (managed and measurable) or higher to be at an effective level of security. Based on our analysis of the FY 2024 IG metrics and associated maturity models, we determined TVA's ISP and practices were operating in an effective manner as defined by the FY 2023 – 2024 IG FISMA Reporting Metrics. However, we identified areas for improvement in both the core and supplemental metrics to further improve TVA’s ISP and practices.