ITGC across SOX, SOC 2 and ISO 27001: test once, satisfy many

If your organisation is heading for SOX, holds a SOC 2 and certifies ISO 27001, you have almost certainly evidenced your user access reviews, change management and backups more than once. The controls are the same; only the report they feed differs. Treating IT general controls as a single hub, rather than a copy inside each framework, removes that duplication.

Why the overlap is so large

SOX ICFR relies on ITGCs to trust automated controls and key reports. SOC 2's common criteria CC6 (logical and physical access), CC7 (system operations) and CC8 (change management) are the same access, operations and change controls. ISO 27001:2022 Annex A covers them again (A.5.15 to A.5.18 for access, A.8.31 and A.8.32 for change, A.8.13 for backup, A.5.24 to A.5.27 for incidents). One well-run control satisfies all three.

How the hub works

• ITGC is a dedicated track of 48 controls across access, change, operations, development, application controls, IPE and segregation of duties.
• Every ITGC control is cross-mapped to the equivalent ISO 27001 Annex A control and SOC 2 criterion, so evidence attached to an ITGC control is related to those frameworks automatically.
• As the SOX module lands, the same controls map to the ICFR audit, so your SOX programme reuses the hub rather than rebuilding it.

The one caveat: re-scope, do not rubber-stamp

A crosswalk is a scope overlap, not a free pass. Evidence gathered for a security objective (SOC 2 or ISO) should be re-scoped to the financial-reporting objective before it is relied on for SOX, and an ISO control proves design where SOX needs operating effectiveness over a period. The hub saves the collection effort; judgement about sufficiency still belongs to you and your auditor.

Test the control once. Let the crosswalk carry the evidence to every framework that asks for it.