Evidence and audits

The failure mode in supplier assurance is “last‑minute document scramble.” A scalable approach keeps evidence current continuously.

Authoritative resources

• Microsoft Supplier Security & Privacy Assurance (SSPA)
• Microsoft Learn: Supplier Security and Privacy Assurance (SSPA) program
• Microsoft Supplier Data Protection Requirements (DPR) — PDF

How to stay review-ready

A review-ready approach has four parts:

1. One evidence library (single source of truth)
2. Clear ownership (who refreshes each artifact)
3. Defined cadence (expiry/review dates and triggers)
4. Point-in-time exports (stakeholder and audit packages)

Governance loop

Four stations, one operating model.

Evidence cadence

Avoid last-minute scrambles

Collect

Store the current artifacts

Review

Validate coverage and applicability

Refresh

Renew audits and re-test controls

Export

Generate packages for reviewers

The dashed arc marks restart — every cycle re-enters Collect with what changed since the last pass.

Independent assessments (what to expect)

Supplier requirements programs typically distinguish between:

• self-attested requirements (supplier asserts compliance and keeps evidence)
• independently assessed requirements (third-party validation or certifications)

In SSPA, Microsoft describes different supplier profiles and when independent assessments may be required, including accepted certification alternatives for some profiles (see the authoritative links above for the current details).

What “good evidence” looks like

Evidence is easiest to defend when it attaches to the smallest meaningful claim (a control component) and can be reused across multiple reviews.

Evidence linking

One evidence file, attached to component-level claims, reused across two controls.

Evidence

model_validation.pdfUploaded 2025-12-15

Reusable

Control components

CTRL-001 group

Component A

Component B

Component C

CTRL-002 group

Component D

Component E

Controls

CTRL-001Model validation

CTRL-002Data quality

1 evidence · 3 linked components · 2 controlsAttach evidence to the smallest meaningful claim — the same file then satisfies parts of every control whose components it covers.

Typical evidence artifacts used in supplier assurance:

• information security and privacy policies (and ownership)
• incident response plan + last exercise/tabletop record
• business continuity / disaster recovery plan + test evidence
• access control and account review evidence
• vulnerability management process + recent outputs
• third-party assurance reports and attestations (when applicable)
• subprocessor list + vendor review cadence and outcomes

How Modulos helps

Use Modulos to:

• store vendor documents and keep them organized
• set review cadence and owners
• reuse vendor artifacts as evidence for project controls where applicable

Where this lives:

• Vendors for supplier records, documents, and review dates
• Project → Evidence when a vendor artifact needs to be referenced as project evidence
• Project → Controls when a supplier artifact supports a system control (e.g., hosting provider security)

Exports for stakeholders (diagram)

Treat exports as point-in-time snapshots for reviewers and internal audit.

Audit pack

How four export types collapse into one shippable bundle.

Inputs

Project PDF export

Top controls (PDF exports)

Evidence files (attachments)

Key assets (Markdown exports)

Audit pack

Single shippable bundle

All four input types, versioned together, ready for the auditor.

Snapshot

Exports are snapshots. Keep scope stable before exporting — the bundle freezes whatever was in place at export time.

Related pages

Scope

Define the boundary so evidence stays consistent

Vendors

Supplier records, documents, and review cadence

Evidence

Evidence objects, linking, and reuse across controls

Disclaimer

This page is for general informational purposes and does not constitute legal advice.