In theory, there is no reason why the principles of deterrence should not apply to cyberspace. However, there are number of reasons why it does not work in practice.

The Cipher Brief's Levi Maxey spoke with Michael Sulmeyer about what a deterrence strategy would look like, and what it could and could not do to prevent malicious cyber activity from targeting U.S. institutions.

Michael Sulmeyer unpacks the possible NSA/CyberCom split and what it would mean to elevate U.S. Cyber Command to the status of a unified command.

A new report from Bloomberg this week reveals that Russian cyberattackers were much more involved in the US presidential election than previously publicized. CNN reached out to Michael Sulmeyer, director of the Belfer Center's Cyber Security Project for his take on what the Bloomberg report reveals about the deeper vulnerabilities in our electoral system.

For two hours on a March afternoon, Harvard Kennedy School’s Bell Hall buzzed as Kennedy School students huddled for 15-minute one-on-one sessions with Belfer Center fellows and project directors to get career advice and to ask questions about the others’ career trajectories, research, and methods.

Harvard University Distinguished Service Professor and former Harvard Kennedy School Dean Joseph S. Nye was honored  by the Center’s Cyber Security Project in April for his leadership and contributions to cybersecurity through the Belfer Center’s cybersecurity initiatives. Nye has announced his retirement at the end of the semester.

Michael Leiter, former director of the U.S. National Counterterrorism Center and Michael Sulmeyer, director of the Harvard Kennedy School Cyber Security Project, weigh in on who to place the blame on regarding the WannaCry virus and Microsoft’s response.

Cyber Security Project Director Dr. Michael Sulmeyer discusses lessons from the recent WannaCry ransomware attack.

Cyber Security Project Director Dr. Michael Sulmeyer asks, "How does the Russian cyber threat (regardless of the Russian government's involvement) affect your business, and what can you do about it?"