What is Fourth-Party Risk? | UpGuard

This report explains fourth‑party risk (your vendors' vendors), why it expands your attack surface and regulatory exposure, and provides a practical framework for Fourth‑Party Risk Management (FPRM): identify critical fourth parties via SOC/SSAE‑18 evidence and vendor questionnaires, prioritize by criticality and data sensitivity, incorporate discovery into due diligence, and continuously monitor using security ratings and attack‑surface monitoring—highlighting UpGuard's tools as an example solution.