The answer is "tallinn manual".
Initially named as, Tallinn Manual on the International Law Applicable to Cyber Warfare, Tallinn Manual is a scholarly, non-restricting investigation on how worldwide law applies to cyber clashes and digital fighting. In the vicinity of 2009 and 2012, the Tallinn Manual was written by a universal gathering of roughly twenty specialists. In April 2013, the manual was distributed by Cambridge University Press.