There is no SOC 3 (System and Organization Controls 3) certification process, as SOC 3 is not a certification, but rather a type of report that can be issued by a third-party auditor.
A SOC 3 report is a public-facing report that provides assurance on the controls that a service organization has in place to protect customer data and ensure the security, availability, processing integrity, confidentiality, and privacy of that data. Unlike a SOC 2 report, a SOC 3 report is designed to be accessible to a broader audience and can be freely distributed.
The process of obtaining a SOC 3 report is similar to the SOC 2 certification process in that a service organization must engage a third-party auditor to evaluate its controls against the Trust Services Criteria and issue a report. However, there are some differences in the reporting requirements and the level of detail provided in the report.
SOC 3 reports are less detailed than SOC 2 reports and do not include a description of the service organization.