Cyber Warfare
60 Articles

Cyber, Sovereignty, and North Korea–And the Risk of Inaction
Americans, and people throughout the world, are becoming increasingly aware that there are significant vulnerabilities in the Internet, and that there are malicious actors who…

Protecting Financial Data in Cyberspace: Precedent for Further Progress on Cyber Norms?
Identifying the legal norms that apply in cyberspace remains highly challenging. The recent collapse of the 5th UN Group of Governmental Experts (GGE) on Developments in the Field…

International Cyber Law Politicized: The UN GGE’s Failure to Advance Cyber Norms
On June 23, after years of slow yet meaningful progress in developing State consensus regarding the application of international law norms to cyberspace, the UN Group of Governmental…

Why a Broad Definition of “Violence” in Cyber Conflict is Unwise and Legally Unsound
International Humanitarian Law (IHL, aka the Law of Armed Conflict) is not intended to outlaw conflict. It is meant to regulate conflict in order to reduce its impact on civilians…

Violence in Cyberspace: Are Disruptive Cyberspace Operations Legal under International Humanitarian Law?
It is already widely acknowledged that cyberspace has become the fifth domain of warfare, and militaries around the world are training various cyber units, who will be supporting…

Tallinn Manual 2.0 – Advancing the Conversation
On Wednesday last week I had the privilege of attending the Washington, D.C. launch of the Tallinn Manual 2.0 on the International Law Applicable to Cyber Operations at the Atlantic…

Watch the Tallinn Manual 2.0 Launch Discussion Online
Today marks the launch of Tallinn Manual 2.0, a key text on how existing international law applies to cyber operations. It was authored by 19 international law experts, and Just…

International Law and the US Response to Russian Election Interference
On Thursday, Senator McCain will hold hearings of the Armed Services Committee on the Russian election hacking. Several aspects of Russia’s election interference raise issues…
US Transparency Regarding International Law in Cyberspace
Last Thursday, State Department Legal Adviser Brian Egan, delivered an important speech at Berkeley Law School on the relationship between international law and cyber activities. …

International Law and Proposed U.S. Responses to the D.N.C. Hack
In a short essay in Foreign Policy, retired Admiral James Stavridis addresses recent election season cyber operations against the Democratic National Party that the U.S. has attributed…
A 9/11 Commission Approach to the Russian Hack of the DNC
This post is the latest installment of our “Monday Reflections” feature, in which a different Just Security editor examines the big stories from the previous week or looks…
Cybersecurity, Elections, and Critical Infrastructure at Home and Abroad
In the last few days, Secretary of Homeland Security Jeh Johnson and Homeland Security Advisor Lisa Monaco have both suggested that in the wake of the DNC hack, the United States…