Section II: Cyber Operations

At the time of composing the Oslo Manual, there were some fundamental differences of opinion among States as to the interpretation or acceptability of terms such as “cyber means of warfare”, “cyber methods of warfare”, and “cyber attacks”. The Group of Experts took cognizance of those differences of opinion but concluded, coherent with the view of the International Court of Justice, as expressed in the Nuclear Weapons Advisory Opinion that the cardinal principles of LOAC would apply to all forms of warfare. This includes cyber warfare.