From the Document: "The National Security Agency (NSA) formed a Cybersecurity Directorate in 2019 with the charge to prevent and eradicate threats to the United States' National Security Systems and critical infrastructure, with an initial focus on the Defense Industrial Base and its service providers. Drawing on NSA's rich information assurance legacy, the Cybersecurity Directorate refocused to meet the demands of the present and the future. It integrated key parts of NSA's cybersecurity mission such as threat intelligence, vulnerability analysis, cryptographic expertise and defensive operations into a more public-facing organization determined to raise the cybersecurity bar across government and industry while also imposing cost on U.S. adversaries. While much of the critical work that NSA does to secure the nation cannot be publicly disclosed, this year in review shares a wealth of information on cybersecurity efforts that have better equipped the U.S. to defend against the highest priority cyber threats from November 1, 2020 through October 31, 2021."
Department of Defense: https://media.defense.gov/