SOC 3 is a type of Service Organization Control (SOC) report that provides a summary of an organization's controls related to security, availability, processing integrity, confidentiality, and privacy. These reports are based on the Trust Services Criteria (TSC) developed by the AICPA and are intended for public distribution. SOC 2 reports are more detailed and customizable, while SOC 3 reports are high-level and intended for public distribution.