In Unit II, you learned about the U.S. Department of Homeland Security (DHS)

In Unit II, you learned about the U.S. Department of Homeland Security (DHS), the Quadrennial Homeland Security Review (QHSR), and, specifically, Mission Four: Safeguard and Secure Cyberspace. This mission focuses on the importance of securing cyberspace in the public and private sectors. The DHS (2009) leads the effort for securing federal computer systems and networks. Today’s cyberspace is considered one of the top critical infrastructures and nodes needing attention globally. This mission focuses on three key goals that include analyzing and reducing cybersecurity threats and risks; communicating cyber threat warnings to all local, state, and federal agencies to include the private sector; and coordinating effective and efficient ways to respond to critical incidents on core computer systems, networks, and government software applications. This ensures that cybercrimes and terrorism are addressed while securing public and private cyber networks (DHS, 2009).

After reviewing Mission Four of the QHSR, do you believe that revisions are needed in order to counter future cyber-terrorist threats and attacks? Why, or why not? If enhancements are needed, what recommendations would you have as a future homeland security professional?


U.S. Department of Homeland Security. (2009). Safeguard and secure cyberspace. Retrieved from

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