Service Organization Control 1 (SOC1) is a report that provides information about the controls at a service organization that may affect the user entities' internal control over financial reporting. It is intended for users who have a reasonable understanding of the nature and significance of the service provided, the service organization's system, and the applicable trust services criteria. A SOC 1 report can help an organization evaluate the effectiveness of the service organization's controls that are relevant to users internal control over financial reporting.