The Tallinn Manual - so much hope, misplaced

A particularly important question is what sort of cyberattack is the equivalent of a traditional armed attack. Efforts to answer that question have culminated in the Manual on International Law Applicable to Cyber Warfare (also known as the Tallinn Manual), which will be published later this year. The Tallinn Manual is a nonbinding yet authoritative restatement of the law of armed conflict as it relates to cyberwar. Declarations of Cyberwar - IEEE Spectrum