Compliance
Evidence capture
Evidence capture is the practice of systematically recording, at the point in time an action, decision, or event occurs, the artefacts needed to later prove that it happened, who was responsible, and that it met a required standard.
Why Evidence capture matters in a Microsoft estate
Evidence capture matters because customers, resellers, and procurement teams need evidence that controls are defined, operated, and reviewable. A useful glossary definition should help a reader connect the term to audit preparation, policy work, or repeatable assurance activity.
How Evidence capture shows up in practice
That requirement might come from a compliance framework, a contractual obligation, a legal matter, or an internal control. It differs from simply having logs available: logs and audit trails are typically continuous and system-generated, capturing activity as a byproduct of normal operation. Evidence capture, by contrast, is often a deliberate, structured act tied to a specific control or process step. Examples include taking a screenshot and timestamped record of a change approval before a production change is made, retaining the signed output of a joiner-mover-leaver checklist, exporting configuration state before and after a significant change, or preserving the specific report an auditor was shown rather than assuming the same report could be regenerated identically months later.
In a Microsoft 365 and Azure context, evidence capture draws on several native sources: Purview audit logs and Entra ID sign-in and audit logs for activity evidence, Intune and Azure Policy compliance reports for configuration state evidence, and Defender and Sentinel incident records for security response evidence. A mature evidence capture practice does not rely solely on those systems remaining queryable indefinitely, though. It exports and retains the specific artefacts relevant to defined controls into a separate, durable evidence store, because production system retention windows, licensing changes, or tenant migrations can otherwise silently remove the very evidence a future audit will ask for.
This distinction matters most acutely during compliance audits for frameworks like ISO/IEC 27001, SOC 2, and Cyber Essentials Plus. An assessor testing a specific control, for example that access reviews happen quarterly, or that leavers are deprovisioned within a defined SLA, will typically sample specific instances. They expect to see direct evidence of that instance having occurred correctly, not just a policy stating that it should. A frequent and avoidable failure is generating evidence only reactively, at audit time, by reconstructing what probably happened from whatever logs are still available, rather than capturing it as a routine byproduct of the underlying process.
This both weakens the evidence's credibility, since contemporaneous records carry more weight than after-the-fact reconstruction, and creates unnecessary audit-season workload. Well-designed evidence capture is therefore usually built into the workflow tooling itself: ticketing systems that require an approval step to be recorded before a change proceeds, automated exports triggered on a schedule, or IT operations platforms that log licence and configuration changes as a structural part of the change itself. This way the evidence exists whether or not anyone remembers to go and gather it later.