SOC 2 reports are restricted-use documents: dense with architecture detail, control listings, and test results, they travel under NDA to readers with a legitimate need. A SOC 3 removes that friction. Produced from the same Type 2 examination, it keeps the auditor’s opinion and management’s assertion, drops Section III and the testing matrices, and carries no distribution restrictions. The auditor issues it from that same examination and testing — a general-use summary of work already performed, not a separate audit — so if you have not earned the Type 2, there is nothing to summarize.
A SOC 3 is a signal, not a diligence artifact. Security reviewers deciding whether to trust you with production data will still request the full SOC 2, because the substance they evaluate — scope, system boundaries, exceptions — lives only there. Where a SOC 3 earns its place is the public layer of trust: the report a small customer accepts without an NDA, the artifact a sales rep can attach to a first reply, the proof point behind a website badge. Teams building that public layer usually pair it with a trust center, an approach we unpack on Trust and Transparency.
SOC 1 covers financial-reporting controls, SOC 2 covers security and its sibling criteria in depth, and SOC 3 republishes the SOC 2 result for a general audience. A buyer who asks for “SOC 3 compliance” almost always means SOC 2 — treat the request as a scoping conversation, not a new project.
