GRC • February 2026

Third-Party & Vendor Risk: The Blind Spot in Most Security Programs

Some of the most damaging breaches in recent years didn't start with the victim organization at all — they started with a trusted vendor or supplier with weaker security controls.

Most companies have a vendor risk process on paper — a security questionnaire sent once during onboarding — but rarely revisit it. Vendor security posture changes constantly, and a point-in-time questionnaire ages quickly.

A practical program tiers vendors by data access and criticality, requires stronger evidence (like a SOC 2 report or ISO certificate) for high-risk vendors, and re-assesses annually rather than only at onboarding.

Contractually, make sure your agreements include the right to audit, breach notification timelines, and clear data handling obligations — before you need to enforce them, not after.

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