The exponentially rising threat of ransomware attacks became nationwide problems. Once the attacker is in, it's easy for him to move inside the perimeter. A process- and workload-centric approach to security led by software-defined segmentation has been the strongly adopted new standard. Learn how you can gain full visibility in your data centers in all environments, be it multi or hybrid cloud ones. We shall explain why firewalls are proving inadequate at mitigating ransomware and what potential alternatives exist, covering the pros and cons of each.