Practical preparation for the SOC 2 examination: the checklist, the auditor's evidence requests, the control matrix, management's assertion and representation letter, fieldwork and sampling, complementary user entity controls and subservice organizations.
A step-by-step checklist for a first SOC 2: define the system and categories, map controls to the criteria, write the system description, settle CUECs and subservice treatment, vet and engage the CPA firm, collect evidence and sign the assertion.
What goes on a SOC 2 auditor's request list and how to prepare it: populations and samples for access, change and monitoring controls, system-generated reports versus screenshots, why inquiry alone is not enough, and who should own each request.
How to build the control matrix behind a SOC 2: one control set mapped to the applicable criteria, using points of focus as guidance rather than requirements, reusing ISO 27001 or NIST mappings, and why copied template controls draw auditor and peer reviewer scrutiny.
What management's assertion in a SOC 2 says and who signs it: claims about the fairness of the system description against DC 200, control design and, for Type 2, operating effectiveness, and how it lines up with the auditor's opinion.
The written representations management gives the CPA at the end of a SOC 2: what AT-C 205 requires, the extra representations in the AICPA's illustrative Type 1 and Type 2 letters, who signs, and the proposed attestation standard changes.
What happens during SOC 2 fieldwork: inquiry, observation, inspection and reperformance, how samples are drawn across the Type 2 period, what the AICPA staff FAQs cover on sampling, and why identical sample sizes across clients are a peer review warning sign.
What complementary user entity controls are, how a service organization decides which to list in its system description, how customers should read them, and why a customer cannot rely on the report for controls it was expected to run itself.
How cloud providers and other subservice organizations are handled in a SOC 2: the carve-out and inclusive methods, complementary subservice organization controls, using the provider's own SOC report as evidence, and vendor oversight under CC9.2.
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