Non-Power Dam Control System Cybersecurity
As part of our annual audit plan, we performed an audit of Tennessee Valley Authority’s (TVA) non-power dam control system cybersecurity. Our objective was to determine if the cybersecurity controls of TVA’s non-power dam control system were operating effectively.In summary, we found (1) no clear ownership of the non-power dam control system, (2) vulnerable versions of operating systems and control system software, (3) inappropriate logical and physical access, and (4) internal information technology controls were not operating effectively or had not been designed and implemented.