SOC 1 vs SOC 2 Which Report Does Your Business Actually Need?

A SOC 1 report, issued under the AICPA's attestation standards (SSAE 18), examines the controls at a service organization that are relevant to user entities' internal control over financial reporting, usually abbreviated ICFR. The logic is straightforward: when a company outsources a process that feeds its financial statements, such as payroll, medical claims processing, loan servicing, fund administration, or transaction settlement, that company's auditors still have to form an opinion on the numbers those processes produce. Rather than send every customer's audit team into your data center, the profession created a single mechanism: one independent CPA firm examines your controls once, and every customer's auditor relies on the resulting report.

Because of that purpose, the control objectives in a SOC 1 are defined by the service organization around the processing that matters financially: transaction authorization, completeness and accuracy of processing, reconciliation, and the IT general controls that sit underneath them, such as change management and logical access. A SOC 1 is a restricted-use report: it is intended for the management of the service organization, its user entities, and those user entities' financial statement auditors, not for general marketing distribution. If your sales team wants a report to hand prospects during security review, that is a job for SOC 2, not SOC 1.

A SOC 2 report examines a service organization's controls against the AICPA Trust Services Criteria. The Security criteria (also called the Common Criteria) are mandatory in every SOC 2 examination; the remaining four categories, Availability, Processing Integrity, Confidentiality, and Privacy, are included based on what you commit to customers and what your services actually touch. Where SOC 1 lets the service organization define control objectives around financial processing, SOC 2 measures everyone against the same published criteria, which is exactly why customers treat it as a comparable trust signal across vendors.

In practice, a SOC 2 examination looks at how you govern security, how you control access to systems and data, how you manage changes and vulnerabilities, how you monitor for and respond to incidents, and how you meet the uptime, integrity, confidentiality, and privacy commitments in your contracts. SaaS companies, cloud hosting providers, data centers, managed IT and security providers, and any vendor that stores or processes customer data are the natural audience. SOC 2 reports are also restricted-use documents, but they are routinely shared with customers and prospects under NDA during vendor security reviews, and a SOC 3 report (a general-use summary of a SOC 2 Type 2) can be published openly for marketing purposes. If you want the deeper walkthrough of the criteria themselves, our SOC 2 compliance services page breaks down each category in detail, and our SOC 2 compliance checklist maps the practical steps.

A useful shorthand: SOC 1 protects your customers' auditors, SOC 2 protects your customers' data. If a request comes from a controller, CFO, or external audit firm during their financial statement audit, they mean SOC 1. If it comes from a CISO, security questionnaire, or procurement portal, they mean SOC 2.

A Type 1 report is a snapshot: the auditor evaluates whether your controls are suitably designed and in place as of a single date. It is faster and cheaper to obtain, which makes it a common first milestone for organizations that need to show customers something soon. A Type 2 report covers a review period, typically 3 to 12 months, during which the auditor tests whether those controls actually operated effectively day after day. Sampled tickets, access reviews, change records, and incident logs from across the whole window all become evidence. Because it proves sustained operation rather than good intentions, Type 2 is what mature customers ultimately expect: a SOC 1 Type 2 for financial-processing vendors, and a SOC 2 Type 2 for data-handling vendors.

The practical sequencing question is where readiness work pays for itself. An exception in a Type 2 report is permanent for that period: if quarterly access reviews were skipped in month two, the report says so for every customer to read. That is why we push clients to run a readiness assessment and remediate before the review period starts, not during it. Our SOC 2 readiness assessment exists precisely to find those gaps while they are still fixable in private, and our SOC 2 Type II certification services carry organizations through the full monitoring period with evidence collection running continuously.

For decades, the only service-organization audit in wide use was SAS 70, a standard built purely around financial reporting. As outsourcing exploded, companies began stretching SAS 70 into a general-purpose "security audit" it was never designed to be: a report about payroll controls was being waved around as proof that a data center was secure. The AICPA responded by splitting the concept. SSAE 16, later superseded by SSAE 18, carried the financial-reporting mission forward as SOC 1, while the newly created SOC 2 took over the security, availability, processing integrity, confidentiality, and privacy questions under the Trust Services Criteria.

That history explains most of the confusion we untangle for clients today. Procurement templates written years ago still say "SAS 70 or equivalent." Financial auditors say "SOC report" and assume you know they mean SOC 1. Security questionnaires say "SOC certification" when no such certificate exists. When Petronella Technology Group scopes a readiness engagement, the first deliverable is simply clarity: which report, which type, which criteria, and which review period actually satisfies the person asking, so you never pay for an examination the requester will reject.

One more distinction worth naming: SOC 2 is an attestation report, not a certificate. There is no pass/fail badge issued by the AICPA, no matter what a vendor's marketing page implies. The deliverable is a detailed report containing the auditor's opinion, the description of your system, and the results of every control tested, exceptions included. Sophisticated customers read those exception listings closely, which is exactly why disciplined preparation matters more than the logo on the cover.

The engine behind steps three through six is ComplianceArmor, our proprietary compliance automation platform. It maps your controls to the Trust Services Criteria, generates the policy set auditors ask for on day one, and collects evidence continuously instead of in a panicked quarter-end scramble. Because the platform also carries CMMC, HIPAA, and PCI DSS modules, organizations that face several frameworks at once maintain one control set that feeds all of them: the access reviews you run for SOC 2 do double duty for HIPAA compliance or PCI DSS without re-collecting anything.

Craig Petronella, MIT-certified cybersecurity professional, CMMC Registered Practitioner, and NC Licensed Digital Forensics Examiner (License# 604180-DFE), has led security and compliance engagements for regulated businesses since founding the company in April 2002. As Craig Petronella details in his book How Hackers Can Crush Your Business, the vendors that fail security reviews are rarely the ones missing a document; they are the ones whose controls exist on paper but never operated. That operational focus, backed by a 24/7 Security Operations Center and the Managed XDR Suite, is what separates readiness work done by a security practice from readiness work done by a document mill. It is also why defense contractors working through our CMMC compliance guide and SaaS companies pursuing SOC 2 end up with the same underlying discipline: controls that run, with evidence to prove it.