Cybersecurity threats are global, and both public- and private-sector cybersecurity efforts require international coordination. Despite an acute need for cybersecurity-specific laws and treaties, these have been slow to develop, and in this vacuum, most countries are trying to adapt and apply existing legal frameworks to combat and address cybersecurity threats. In this second part of a two-part guest article series addressing the intersection of cybersecurity and international law, Hughes Hubbard attorneys Seth Rothman and Andreas Baum explore laws related to cyber crimes and international laws that regulate business activities, including recent E.U. legislative efforts. Part one provided insight on cyber warfare and the relevant laws and treaties that address the shifting threats. See also “Prosecuting Borderless Cyber Crime Through Proactive Law Enforcement and Private Sector Cooperation” (Mar. 2, 2016).