This document is a one-stop resource to help organizations reduce the risk of ransomware incidents through best practices to detect, prevent, respond, and recover, including step-by-step approaches to address potential attacks. This publication was developed through the Joint Ransomware Task Force (JRTF), an interagency body established by Congress in the Cyber Incident Reporting for Critical Infrastructure Act of 2022 (CIRCIA) to ensure unity of effort in combating the growing threat of ransomware attacks.
https://www.cisa.gov/resources-tools/resources/stopransomware-guide

PDF: https://www.cisa.gov/sites/default/files/2023-10/StopRansomware-Guide-508C-v3_1.pdf