UpGuard：2026年高等教育领域第三方网络安全风险报告（英文版）

In our analysis of 515 US-based institutions, we identified more than 105,000 vendor instances across 5,400 unique suppliers. The findings reveal a vendor ecosystem that is broad, decentralized, and increasingly difficult for security teams to continuously govern. This report examines five forces widening the thirdparty visibility gap: vendor sprawl, supplier concentration, unique vendor risk, embedded AI exposure, and manual review lag. Together, they show how third-party exposure is extendi