The surge in ransomware attacks on cities, municipalities, schools, and healthcare organizations this year is just a foretaste of what is likely come in 2020. Threat actors have sensed a real opportunity to make big returns attacking enterprise organizations using ransomware and are refining their tools and techniques to increase their chances for success. Recent developments include growing collaboration between threat groups on ransomware campaigns; the use of more sophisticated evasion mechanisms; elaborate multi-phase attacks involving reconnaissance and network scoping; and human-guided automated attack techniques.”]
Source: https://www.darkreading.com/attacks-breaches/ransomware-situation-goes-from-bad-to-worse