Universities are rethinking vendor risk after a cyberattack against Instructure impacted an unprecedented scale of education users. A data breach targeting Canvas affected 275 million students, teachers, and staff across roughly 9,000 institutions, prompting emergency communications and warnings from campuses including the University of Wisconsin–Madison. The incident is now being used as a practical template for institutional action: strengthen incident response procedures, tighten vendor oversight, and improve how universities guide users during active exploitation windows. The immediate task for IT and risk leaders is reducing the chance that identity and access workflows can be hijacked through LMS-related lures. The broader lesson for higher education is that LMS vendor security must be treated as core campus infrastructure risk, not a peripheral IT concern—especially as learning platforms handle authentication and sensitive student data.