Based on statistics from cyber insurance providers, ransomware accounted for over 41% of cyber insurance claims filed in the first half of 2020. However, while ransomware is very common, they almost never happen without some technical indicators. Most ransomware operations take a few days after the initial intrusion to complete as cybercriminals conduct reconnaissance of the network, seek out administrator credentials, and expand their span of control. In that time, the cybercriminals can be detected and evicted from the network, but only if proper detections are in place and a security team is monitoring the detections closely. Because of this, Binary Defense recommends the use of a 24/7 Security Operations Center, either staffed internally or using an expert security service provider such as our Security Operations Task Force.
https://www.zdnet.com/article/nevada-school-district-refuses-to-submit-to-ransomware-blackmail-hacker-responds-by-publishing-student-data/